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Sparco QRT-R Gaming Seat: Light as a Feather, Tough as a Racecar NON FIA or SFI If you’ve ever dreamed of strapping into a high-performance race seat without needing to first fasten your actual seatbelt (because, hey, you’re at home), then the Sparco QRT-R Gaming Seat is your dream come true. With its ultra-light design, made for serious sim racers and track day enthusiasts, this is not your average gaming chair. It’s the throne of champions. The QRT-R was the first seat to feature Sparco’s groundbreaking QRT ultra-light technology, making it the lightest “large” size fiberglass seat on the market. We’re talking about a seat so light, it might just blow away in the wind (but don’t worry, it won’t). Designed for the larger driver, the QRT-R comfortably fits a 36” waist and still weighs less than your competitors’ medium-sized chairs. Oh, and here’s a little secret: It’s not FIA approved, but since you're racing in your living room, no one’s checking for that, right? Why Choose the Sparco QRT-R Gaming Seat? Featherweight Champion At just a fraction of the weight of traditional seats, thanks to Sparco's patented QRT technology, this bad boy is perfect for both small cockpits and those marathon racing sessions where every ounce matters (in case, you know, you're racing against your sofa). Big Comfort for Big Drivers Large drivers rejoice! The QRT-R fits up to a 36” waist with comfort that’ll make you feel like you’re in pole position even if you’re P7. Aerospace Tech, Affordable Price Developed at Sparco’s Italian lab, this seat uses the same aerospace technology that rockets use. Well, maybe not literally rockets, but it's still pretty darn cool. And it's significantly more affordable than carbon fiber, offering an unbeatable strength-to-weight ratio. Stay Cool, Stay in Control Thanks to fire-retardant, non-slip fabric, you won’t be slipping and sliding around during intense races. It grips where you need it to, keeping you focused on the road—or the screen. Ergonomic Design Perfect for long gaming sessions, this seat supports you in all the right places, ensuring your back doesn’t wave the white flag before you finish the race. Imagine This The lights go out. It’s race time. You’re in the cockpit, gripping the wheel, sweat beading on your brow. The engine roars to life—well, okay, your console buzzes—and you launch into Turn 1. Every bump, every corner, it feels like you’re there. The Sparco QRT-R Gaming Seat holds you snug, ergonomic perfection keeping you steady while your competitors start to sweat…in their inferior chairs. By the time you cross the finish line, you’re not just a gamer—you’re a racer. Sparco QRT-R Specification Shell: QRT Ultralight fiberglass composite Driver Size: Large, up to a 36” waist Ergonomics: Superior support for long racing sessions Fitment: Optimized for tight cockpit spaces Weight Reduction: Up to 30% lighter than traditional fiberglass seats Sparco QRT-R Seat FAQs Is this seat FIA approved?Nope! But since you're not actually competing in Le Mans, no worries here. It’s designed for sim racing, not real racing. Sit back and enjoy the game. Can I fit into this seat?If your waist is 36” or smaller, absolutely! This seat is built to accommodate larger drivers, with a comfortable, ergonomic design. Will this seat work with my sim rig?The QRT-R Gaming Seat is compatible with most popular sim rigs, so you're good to go with setups like Fanatec, Thrustmaster, or Logitech. Start revving those virtual engines! How light is the QRT-R seat, really?Sparco's QRT technology cuts up to 30% of the weight compared to traditional seats. Lighter than most fiberglass seats on the market, you’ll feel like you’re flying (but without the G-forces). Time to Take the Checkered Flag You’ve read about it, you’ve imagined it, and now it’s time to make the Sparco QRT-R Gaming Seat yours. Don’t just play the game—feel the race. Whether you’re chasing track records or just looking to take your sim setup to the next level, this seat delivers in every way. Ready to bring the racetrack home? Click "Add to Cart" and get ready to rev your engines!

D2-282 Girodisc 370mm Rear Replacement Rings Rings only, sold as a pair with new hardware. Reuse your existing Girodisc aluminum hats. These rings are engineered for Girodisc hats only and will not fit OE or other aftermarket hats. Vehicle Fitment BMW G87 M2 – Rear (for A2-282 kits) BMW G80/G81 M3 – Rear (for A2-282 kits) BMW G82/G83 M4 – Rear (for A2-282 kits) Easy Service, Consistent Performance High-carbon iron rings with 48 curved vanes provide reliable cooling and durability. New pins, clips, and Belleville washers restore proper float and clamping force. Features Replacement rings only; includes hardware Direct fit for Girodisc A2-282 rear rotor kits High-carbon iron; USA-poured and machined 48-vane internal design for airflow Sold/priced per pair D2-282 FAQs Minimum thickness? Replace at 22 mm or sooner if a crack reaches the outer edge. Do I reuse hardware? No — always install the supplied new hardware and torque per instructions. Do I need to re-bed pads? Yes — re-bed after ring installation to stabilize the friction layer.

Sparco PRO 2000 QRT Sim Racing Seat Feel the Track Without Leaving Your Setup This seat is neither FIA nor SFI approved and is not intended for racing or competition use. Ready to take your sim racing game to the next level? The Sparco PRO 2000 QRT Sim Racing Seat isn’t just a seat—it’s a full-on racing experience. Whether you're chasing the podium or working on those perfect apexes, this seat delivers pro-level comfort and precision for serious sim racers. With QRT technology and superior lateral support, the only thing missing is the smell of burning rubber. Sparco PRO 2000 QRT Features & Benefits Because Winning Takes More Than Just Skill QRT Ultralight Shell: This isn’t your average gaming chair. The QRT fiberglass composite shell is super lightweight and incredibly strong, offering the same kind of tech you'd find in real racing seats. At 30% lighter than traditional fiberglass, you’ll be gliding through virtual tracks with ease—and bragging rights. Non-Slip Fabric: In a heated sim race, the last thing you need is to feel like you're slipping and sliding around in your seat. The non-slip fabric in the shoulders and bottom cushion keeps you stable and focused—ready for that perfect line every lap. Adjustable Lumbar Support: Even champions need comfort. With removable and adjustable lumbar cushions, your back will stay in prime condition for those long endurance races. Ready for a 24-hour Le Mans sim? So is this seat. Versatile Mounting Options: Whether you’re using a full sim rig or a simpler setup, the bottom and side-mounting capabilities offer full flexibility. Bottom mounting (with the optional #50003 Spacer kit) or side mounting—customize your rig exactly how you like it. What Is QRT Technology? Sparco’s Quick Resin Technology (QRT) is a game-changer for sim racers. Born from aerospace tech, this process creates ultralight, strong fiberglass shells—bringing your sim racing seat closer to carbon fiber performance but without the steep price tag. It’s like having F1-level engineering in your home setup. More immersion, less weight, more wins. Sparco Pro 2000 QRT Specifications Shell Material: QRT Ultralight Fiberglass Composite Mounting Options: Side or bottom (bottom mounting requires #50003 Spacer kit) Fitment: Medium size, up to 34” waist Fabric: Fire-retardant, with non-slip fabric on shoulder and bottom cushions Lumbar Support: Removable and adjustable lumbar cushions Weight Reduction: 30% lighter than traditional fiberglass racing seats Compatibility: Ideal for sim racing setups Sparco PRO 2000 QRT Seat FAQs (Because We Know You Have Questions) Is this seat compatible with all sim racing rigs?Yes! Whether you're using a full rig or a simpler DIY setup, the Sparco PRO 2000 QRT can be mounted on most sim racing rigs with its side and bottom-mounting options. Can this seat support long endurance racing sessions?Absolutely. With its adjustable lumbar support and ergonomic design, this seat is built for both quick sprints and long marathon races, keeping you comfortable and supported through every lap. What waist size does this seat fit?The PRO 2000 QRT is perfect for medium-sized racers, comfortably fitting those with a waist up to 34 inches. It’s like sitting in the cockpit of a race car, even if you’re still in your living room. Ready to feel the rush of the track from the comfort of your home? The Sparco PRO 2000 QRT Sim Racing Seat offers the kind of immersive experience you’ve been dreaming of—combining lightweight design, ergonomic support, and professional-level performance. Don’t wait—hit “Add to Cart” and start racing in style today!

Sparco GP Sim Racing Seat Bring Formula 1 Thrills to Your Living Room This seat is not FIA or SFI approved and is not intended for racing/competition use Ever dream of tearing down the track in a Formula 1 car, feeling the g-forces tug at your body, and hearing the engine roar as you hit top speed? Well, while we can't all hop into a real F1 car (yet…), the Sparco GP Seat is the next best thing for turning your living room into the ultimate racetrack. Designed for the most demanding gamers and racing enthusiasts, this isn't just a seat—it’s a gateway to the thrill of racing. Why You'll Love the Sparco GP Seat From Sparco’s legendary experience in motorsport racing equipment, they've packed the highest levels of safety and comfort into a seat designed for those who crave the adrenaline of single-seater racing... but from the comfort of their own home. Whether you're a seasoned track-day warrior or just trying to shave seconds off your sim lap times, the Sparco GP Seat is for you. Authentic Driving Position-Ever wanted to feel like you're in the cockpit of a real F1 car? The Sparco GP Seat's fiberglass shell replicates the "lying down" driving position you’d find in Formula 1. You’ll almost expect Lewis Hamilton to pull up next to you. Comfort That Goes the Distance-Sim racing marathons are no joke. Luckily, the Sparco GP Seat comes with strategically placed paddings that improve lumbar, shoulder, and head comfort. You can go lap after lap without feeling like you've been run over by a truck. Sporty or Sleek—Available in black and red technical fabric for that racy, high-performance vibe, or in smooth sky leather for a more refined, luxurious look. Either way, it’s a seat you won’t mind spending hours in (even if you keep finishing in P2). Visualize This Picture this—you're racing through Eau Rouge at Spa, your heart pounding as you take the corner. The Sparco GP Seat's F1-inspired design makes you feel like you're there. Every twist of the wheel, every brake dive—it's like you’re flying around the track. The world fades away, and it's just you, the car, and the road ahead. And best of all? You're doing it all from your living room, snack break included. Sparco GP Seat Features & Specs Fiberglass shell for that authentic F1 feel Soft technical fabric or smooth sky leather upholstery options Padding for lumbar, shoulder, and head support Compatible with most popular sim rigs Not FIA homologated (but who cares? It’s in your living room!) Sparco GP Seat FAQs Is this seat adjustable?Absolutely! The Sparco GP Seat adjusts to accommodate various driving styles and comfort preferences. Whether you’re the type to sit up for a rally race or recline like an F1 pro, it’s got you covered. What sim rigs is it compatible with?The Sparco GP Seat is compatible with most major sim racing setups. So whether you're using Logitech, Thrustmaster, or Fanatec gear, you'll be ready to race in no time. Is this seat suitable for long gaming sessions?100%. This seat was made for endurance. With padding in all the right places and a design focused on comfort, you can go on all-night racing binges without feeling like you're sitting on concrete. Get Behind the Wheel — Literally! Stop dreaming about driving like a pro and make it a reality with the Sparco GP Seat. Whether you're chasing world records in a sim race or just looking to level up your gaming setup, this is the seat that will take you there. Get yours today and turn your home into the ultimate race experience. Because, let’s face it, who doesn’t want to feel like an F1 driver without leaving their house?

D1-169 Girodisc Ford Focus RS Front Rings Revive the braking performance of your Focus RS with Girodisc D1-169 350mm front replacement rings. Designed as direct replacements for Girodisc two-piece rotors, these precision-machined rings bolt directly to your existing aluminum hats using the supplied floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon iron alloy, offering superior heat resistance, fade-free stopping power, and consistent pedal feel even during repeated hard braking. Vehicle Fitment Compatible with:• Ford Focus RS (MK3, 2016–2018)• Focus RS equipped with Brembo 4-piston front calipersNote: Designed exclusively for Girodisc 350mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 350mm two-piece front rotors• CNC-machined from high-carbon cast iron for maximum strength and heat control• Directional curved vanes promote efficient air cooling through the disc• Maintains OEM brake bias, ABS, and ESC performance• Precision-balanced for vibration-free braking• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 350 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-169 Ford Focus RS Front Ring FAQs Do these fit the factory Focus RS rotors or hats? No. These are designed specifically for Girodisc aluminum hats and will not fit the OEM Brembo one-piece setup. What pad compounds pair best with these rotors? For mixed use, Ferodo DS2500 or Hawk HPS 5.0 pads work best. For track, use DS1.11 or Carbotech XP10 for optimal bite and temperature range. What torque should I use for the floating hardware bolts? Tighten to 12 ft-lbs (16 Nm) with blue Loctite. Recheck torque after the first heat cycle for best reliability. Are these rotors directional? Yes. Each rotor is marked for left or right use — follow the engraved rotation arrow to ensure correct vane airflow during installation. Upgrade your Focus RS braking system with Girodisc D1-169 350mm front replacement rings — engineered for balance, cooling, and repeatable high-performance stopping power.

Toyota GR Supra, BMW 345mm Rear Replacement Rings Bring your Toyota GR Supra or BMW back to peak braking performance with the Girodisc D2-307 Rear Replacement Rings. These high-performance iron rotor rings are engineered as direct replacements for your Girodisc two-piece rotors, delivering exceptional cooling, reduced weight, and race-proven reliability for street and track use alike. When your Girodisc rotors reach their wear limit, these precision-machined rings let you refresh your braking system without buying new hats. Each ring is crafted from Girodisc’s proprietary U.S.-poured high-carbon cast iron, designed for extreme heat resistance and consistent braking under load. Whether you’re attacking corners on the track or driving hard on the street, Girodisc ensures your braking stays sharp, stable, and fade-free. Features and Benefits Direct replacements for Girodisc 345mm two-piece rear rotors Machined from proprietary high-carbon cast iron for superior durability 48 curved directional vanes optimize airflow and heat dissipation Lightweight design minimizes unsprung and rotational mass Includes all new drive pins, bolts, and washers for installation Fully machined, balanced, and assembled in the USA Vehicle Fitment 2020+ Toyota GR Supra (A90 / A91) 2019+ BMW Z4 M40i BMW G29 Platform (B58 engine) These rings are designed exclusively for Girodisc aluminum hats and will not fit OEM or other aftermarket rotor hats. Why Choose Girodisc Girodisc brake systems are the benchmark for performance and reliability in motorsport-inspired braking. The D2-307 replacement rings allow you to maintain top-tier braking performance at a fraction of the cost of full rotor replacement. Every Girodisc component is precision engineered, race-tested, and built to handle extreme thermal stress with consistent, confident braking lap after lap. FAQs Do these include the aluminum hats?No. The D2-307 kit includes only the iron rotor rings and a new hardware kit. Your existing Girodisc hats are reused. Can these be used with factory rotors?No. Girodisc replacement rings are designed exclusively for Girodisc two-piece rotors and will not bolt to OEM or other aftermarket hats. Are these rotors directional?Yes. Each rotor ring features curved internal vanes and must be installed on the correct side for optimal airflow and cooling efficiency. What comes in the box?A pair of 345mm rear rotor rings (left and right) plus all new drive pins, bolts, and washers. Ready to Upgrade? When it’s time to restore the full stopping power of your Toyota GR Supra or BMW Z4, the Girodisc D2-307 Rear Replacement Rings deliver uncompromising quality, cooling performance, and long-term durability. Order your set today from Competition Motorsport and keep your braking performance at its absolute best.

D1-310 Girodisc Mercedes A45, CLA45, GLA45 Front Replacement Rings D1-310 are front rings only, sold in pairs with fresh hardware. Reuse your existing Girodisc aluminum hats. Rings are engineered exclusively for Girodisc hats and are not compatible with OE or other aftermarket hats. Vehicle Fitment Mercedes-AMG A45 (W176) – Front (for A1-310 kits) Mercedes-AMG CLA45 (C117) – Front (for A1-310 kits) Mercedes-AMG GLA45 (X156) – Front (for A1-310 kits) Service-Friendly Refresh High-carbon iron rings with curved vanes maintain cooling performance. The included drive pins, clips, and Belleville washers restore proper float and clamp force. Features Replacement rings only; includes hardware For use with Girodisc hats (A1-310 front rotor kits) High-carbon iron, USA-poured and machined Curved vane internal geometry for airflow D1-310 FAQs Minimum thickness or crack criteria? Replace if below Girodisc’s recommended service thickness or if a crack reaches the outer edge of the ring. Bed-in required? Yes — follow a standard pad/rotor bedding procedure to stabilize the friction layer. Hardware reuse? New hardware is included; do not reuse old pins/springs. Torque spec? Follow Girodisc’s supplied instructions for fastener torque and sequence.

Girodisc Corvette C8 Z51 Rear Rotor Rings The Girodisc D2-242 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rotors on the Chevrolet Corvette C8 Z51. Designed for seamless fitment and peak braking performance, these iron rings restore the stopping power, cooling efficiency, and balanced pedal feel your Girodisc system was built to deliver. Restore Performance with Genuine Girodisc Components Manufactured and machined entirely in the USA, each rotor ring is cast from Girodisc’s proprietary iron alloy for superior strength, thermal stability, and friction consistency. The curved vane internal structure acts as a centrifugal air pump, pulling cooling air through the rotor to maintain ideal temperatures under repeated hard braking. Sold in pairs and supplied with new hardware, these rings bolt directly to your existing Girodisc aluminum hats with no modification required. Features • Direct replacement for Girodisc Corvette C8 Z51 rear rotors• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for enhanced cooling and fade resistance• Includes full replacement hardware kit for installation• Reuses Girodisc aluminum hats• Maintains OEM fitment and brake bias• Sold/priced per pair• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Chevrolet Corvette C8 Z51 (All Years) – Rear• Designed for Girodisc two-piece rotor systems• Will not fit OEM two-piece rotors or other aftermarket hats Girodisc D2-242 Corvette C8 Z51 Rear Replacement Rotor Rings FAQs Can I reuse my Girodisc aluminum hats? Yes. These replacement rings are designed to bolt directly onto your existing Girodisc hats using the included hardware. What’s included in the kit? Two iron rotor rings (left and right) and all necessary hardware for reassembly. Do these fit OEM rotors or other brands? No. Girodisc replacement rings are engineered exclusively for Girodisc systems and are not compatible with OEM or other aftermarket hats. Are the rotors directional? Yes. Each ring is labeled left and right to ensure proper airflow through the curved vane cooling system. Do these improve performance over OEM? Yes. Girodisc rotors are lighter, run cooler, and offer more consistent braking under track or spirited driving conditions compared to factory components. Are they sold as a set? Yes. The Girodisc D2-242 Corvette C8 Z51 Rear Replacement Rotor Rings are sold and priced per pair and include all required hardware. Maintain the performance and precision of your braking system with Girodisc D2-242 Rear Replacement Rotor Rings—engineered for the Corvette C8 Z51 to deliver race-bred strength, superior cooling, and consistent stopping power lap after lap.

D1-242 Girodisc Corvette Front Rings Refresh your Corvette C8 Z51’s braking system with the Girodisc D1-242 345 mm front replacement rings. These precision-machined rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface while maintaining your lightweight two-piece rotor design and factory braking balance. Vehicle Fitment Compatible with:• Chevrolet Corvette C8 Z51 (2020+) – front axleNote: Designed exclusively for Girodisc 345 mm two-piece front rotor systems. Not compatible with OEM one-piece or other-brand rotor hats. Features • Sold as a left/right pair with full hardware kit• Direct replacements for Girodisc 345 mm two-piece front rotors• CNC-machined from high-carbon cast iron for durability• Directional curved vanes enhance airflow and heat dissipation• Maintains factory brake bias and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands Specifications • Diameter: 345 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and new hardware kit• Sold/priced per pair Girodisc D1-242 Corvette C8 Z51 Front Ring FAQs Do these fit factory rotor hats on the C8 Z51? No. These rings are engineered for Girodisc-brand hats only and will not mount to OEM hats. Will these use the OEM calipers? Yes. These rings maintain correct offset and clearance to match the stock Z51 braking geometry when used with Girodisc hats. Are they suitable for performance or track use? Absolutely. The floating design and high-carbon construction ensure consistent stopping performance and reduced fade under heavy braking. What’s the benefit of replacing just the rings? You retain your Girodisc hats, save on cost, lower unsprung weight, and keep the two-piece rotor system advantage. Upgrade your Corvette C8 Z51’s braking performance with Girodisc D1-242 front replacement rings — engineered for precision, cooling and durability on road or track.

Ferodo FRP3110G DS3.12 Porsche Front Brake Pads Designed for use with iron brake rotors only. Ferodo 11 FRP3110GB-N DS3.12 Front Brake Pad Fitment: Porsche 992 GT3 Cup Car (Front) Compound: DS3.12 The DS3.12 is the latest evolution in Ferodo's incredible DS line. Sports cars today have more of everything: more horsepower, more sophisticated aero, higher curb weights, and stickier tires. These attributes place serious demands on a vehicle's brake system. The Ferodo DS3.12 is the modern pad compound designed from the start to explicitly handle those demands. Ferodo FRP3110G DS3.12 Relative Performance Chart  Out of all the pad compounds we've ever tested, from all manufacturers, the Ferodo DS3.12 shows the flattest torque curve across the broadest temperature range. That means on every turn, on every track you drive, on every lap, your brake pedal is going to feel almost exactly the same, providing tremendous consistency and repeatability. The DS3.12 has a higher mu (µ) than Ferodo's other compounds, so not as much pedal pressure is required to initiate the desired response. It is also un-fadable, showing no drop in performance at any temperature your brakes will ever see. Ferodo FRP3110G DS3.12 Friction Coefficient (Mu) Chart In dyno testing, the Ferodo DS3.12 has shown superior wear rates to the other Ferodo compounds, while remaining kind to brake rotors. We believe the Ferodo DS3.12 will become the gold standard by which other race compounds will be judged. Ferodo FRP3110G DS3.12 Operating Temperature Chart

AP Racing 345x30mm Replacement J Hook Front Floating Racing Brake Rotors Fit The Following Cars (w/ OEM Iron Rotors)- Center hat Excluded, rotor discs and hardware only. Replacement Disc Only For AP Racing 13.01.20042 Fit The Following Cars (w/ OEM Iron Rotors) Corvette C8 Z51  AP Racing by Essex 2-piece Competition J Hook front disc pair for Corvette C8 Z51 with iron discs 345mm x 30mm (13.59" x 1.18") 72 Vane, D66 Huge increase in airflow, cooling capacity, and durability vs. OEM discs Saves 2 lbs. unsprung weight per side vs. OEM iron discs Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips Sold/priced per pair of rotor rings (including hardware). AP Racing J Hook Brake Rotors – The Gold Standard in Track Day & Racing Performance Engineered for professional motorsport, HPDE, and dedicated track day use, AP Racing’s J Hook Brake Rotors deliver uncompromising performance, thermal stability, and consistent braking power. These two-piece, floating rotors are built to handle the extreme demands of road racing, with design features derived from over 50 years of elite competition—including Formula 1, NASCAR, and IMSA. Unlike conventional one-piece rotors, AP Racing’s two-piece floating design features a billet aluminum hat mated to a cast iron disc via precision-engineered bobbins. This setup allows for controlled radial expansion under high heat, minimizing distortion and coning. The result? More even pad wear, a firmer pedal feel, and longer component life, even during extended lapping sessions or endurance racing. Floating hardware includes anti-knockback spring clips that reduce piston retraction while eliminating common NVH issues like rattling. Why Choose AP Racing J Hook Rotors? Advanced Cooling, Superior Bite, Unmatched Durability At the heart of every rotor is AP Racing’s proprietary high-carbon iron alloy, developed to withstand repeated thermal cycling without cracking or warping. Internally, directional vanes—far superior to OEM pillar or straight vane designs—maximize airflow and cooling. With 60 to 84 vanes per rotor, AP Racing achieves faster heat evacuation, reduced brake fade, and a more consistent friction surface. These rotors are left/right-specific for optimal airflow and balance. The exclusive J Hook slot pattern offers enhanced initial bite and promotes uniform heat distribution across the rotor face, reducing pad deposits and vibration. Unlike drilled rotors or straight-slot competitors, the J Hook design provides cleaner pad transfer during bed-in and superior modulation under braking—ideal for serious drivers who demand feedback and control. Yes, you might hear a little more whirr, but you’ll gain the stopping power, consistency, and longevity your lap times demand. Premium Components, Affordable Performance The rotor hats are CNC-machined from 6061-T6 billet aluminum and hard anodized for strength and heat resistance. Scalloped edges under the hat further assist heat dissipation. All hardware is U.S.-made to AP Racing spec, the same quality found on pro-level racing platforms. And while these rotors are race-proven, they’re also surprisingly cost-effective to replace. Don’t settle for cheap rotors that crack after a weekend—AP’s J Hook rings offer better durability and real long-term value. Fewer replacements mean more track time, less downtime, and peace of mind knowing you're running the best. Used by Champions. Trusted by Experts. From endurance racers to HPDE enthusiasts, AP Racing brake rotors are trusted worldwide for their reliability, longevity, and performance under pressure. Whether you're shaving seconds off your lap time or building a dedicated track car, the J Hook delivers a professional-grade solution that won’t let you down.   AP Racing J Hook Brake Rotors for Auto Racing, Track Days & HPDE Why Rotor Design Matters: Heat Expansion and Floating Technology As with most metals, iron brake discs expand significantly under heat. When temperatures rise, the disc grows radially—expanding in both diameter and circumference. Traditional one-piece rotors struggle to accommodate this natural expansion. As the outer edge pulls away from the center under heat stress, it creates a condition called “coning”—a distortion that compromises pad-to-rotor contact. This distortion can lead to uneven pad wear, brake tapering, and an inconsistent, long brake pedal. AP Racing two-piece floating brake rotors are purpose-built to eliminate these issues. Engineered with “float” built into the disc or hat assembly, these rotors feature oblong-shaped mounting holes that allow the hardware to slide as the disc heats up. This flexibility ensures the disc runs true within the caliper under high-temperature loads, effectively reducing distortion, minimizing pad taper and stress cracks, and promoting longer component life. Custom Mounting Hardware & Anti-Knockback Spring Clips AP Racing rotors utilize application-specific, U.S.-made mounting hardware—not generic bolts. These premium components are the exact parts used in AP’s professional motorsport products, engineered to withstand the rigors of competitive racing. To manage lateral disc motion that can push caliper pistons backward (known as knockback), AP Racing integrates anti-knockback spring clips on alternating bobbins—five on a ten-bolt setup, six on a twelve-bolt disc. These clips keep the aluminum hat and iron disc ring properly aligned while still allowing for radial float. Bonus: they eliminate annoying rattles and vibrations, ensuring a quieter, more refined braking experience. High-Performance Hat Design for Heat Isolation The disc hats in AP Racing’s two-piece floating rotors are CNC-machined from 6061-T6 billet aluminum and finished with a hard anodized coating. This high-strength aluminum alloy was selected for its ability to maintain structural integrity even at elevated temperatures. AP adds scalloped channels beneath the hat to further encourage airflow and heat evacuation from the outer disc face, minimizing thermal transfer to hubs and wheel bearings—helping reduce maintenance costs on these expensive components. Internal Vane Engineering: Airflow Optimization & Thermal Stability AP Racing’s internal vane design sets them apart from OEM and most aftermarket competitors. While many factory brake discs use non-directional pillar vanes (low-cost and NVH-focused), AP Racing rotors use directional vanes engineered for maximum airflow. These rotors are side-specific—meaning you’ll receive a unique left and right disc in each set—ensuring optimized cooling through strategic vane orientation and shape. Beyond that, AP Racing rotors feature a superior vane count, typically ranging from 60 to 84 vanes, compared to 30–48 in most aftermarket rotors. After extensive CFD and thermal analysis, this high vane count was proven to: Increase airspeed and thermal transfer Reduce recirculation and deflection at the disc face Minimize coning, cracking, and brake fade Deliver more even pad contact and extended rotor life J Hook Slot Pattern: Exclusive to AP Racing Slots and drill holes may improve initial bite, but they also introduce “cool spots” in the rotor face—areas of uneven heating that can lead to stress risers, cracks, and pad vibration. OEM rotors often avoid this by leaving the disc face blank, but that compromises bite and brake feel. AP Racing’s patented J Hook design, developed through rigorous R&D, solves this problem. The hooks are meticulously spaced around the disc’s circumference and from hat to edge, forming a continuous distortion path that ensures even heat distribution. This encourages uniform pad deposits during bed-in, helps reduce judder and cracking, and improves consistency under repeated high-load braking. In addition, the J Hook slots provide more leading edges for pads to grip than traditional curved slots or blank rotors. While this might generate a mild whirring sound during braking, the benefits—more bite, cleaner bedding, better pedal feel—make it the top choice for committed racers and serious track day drivers. Metallurgy Backed by 50+ Years of Motorsport Leadership AP Racing's reputation is built on performance, and their proprietary iron alloy used in J Hook rotors is no exception. Drawing from over five decades of elite motorsport experience, including 750+ Formula 1 wins and widespread use across NASCAR, AP’s engineers have developed a disc alloy that excels under sustained racing temperatures and stress. Where OEM discs focus on affordability and mass production, AP Racing’s J Hook rotors are purpose-built for motorsport durability and heat resistance. Affordable Replacement Cost: Serious Value for Serious Drivers Even the best brake rotors are consumables. When you drive hard—especially at the track—your discs will eventually wear out. That’s why AP Racing designed their replacement iron rings to be cost-effective, allowing you to replace worn parts without breaking the bank. Compare that to constantly buying cheap $150 rotors every weekend—rotors that can't handle the heat and need to be swapped frequently. With AP Racing’s J Hook rotors, you get longer service intervals, less downtime, and better performance over time, making them an incredibly smart long-term investment. Proven on Track. Trusted by Champions. Top-tier racing teams rely on AP Racing J Hook rotors for one reason: they perform under pressure. Whether you're running time trials, attending HPDE events, or competing in wheel-to-wheel racing, these rotors offer professional-grade reliability, safety, and performance. Bedding and preparation of AP Racing J Hook Disc Properly preparing your new brake discs before heavy use is extremely important. The goal of bedding-in your brake pads and discs is to mate them together properly and prepare them for heavy use.  When prepared properly, or bed-in, your pads will transfer a thin layer of material to the disc face (transfer layer).  The pads in your caliper will then actually ride on that thin layer of pad material you’ve put down on the rotor, rather than rubbing directly on the iron rotor face.  A good transfer layer is going to give you superior brake pedal feel, less noise, superior pad wear, and lower the chances of cracking your discs. Important Notes- PLEASE READ! First, make sure you are on a closed course to perform a proper bed-in.  Do NOT perform the procedure on public roads.  You need a stretch of asphalt with long straights, good visibility, and no potential obstructions.  Make sure you are in a position to safely and repeatedly attain the necessary speeds to perform the bed-in procedure.  A controlled racetrack is the best place to perform this procedure.  AP Racing and Competition Motorsport in no way suggest or condone speeding on public roads or breaking the law in your car, nor do we take responsibility for any damage or injury that occurs as a result of using our product or these procedures.  You are performing the bed-in procedure at your own risk.  During these procedures, it’s critical that you never come to a complete stop with your foot on the brake pedal.  If you have brake ducts on your car, you may want to block them off to allow your brake system to heat up easily. The procedure outlined below is a generic procedure for most types of mild race pad.  Please check your pad manufacturer’s recommended bed-in procedure. Accelerate to approximately 60mph and then decelerate down to 5 mph.  If your car has ABS, you should try to hold the brakes at a point just before ABS intervention.  Once the car slows to 5mph, immediately accelerate back up to about 60mph, and brake again to roughly 5mph.  Repeat this series of stopping and accelerating 8 to 10 times.  Again, do not come to a complete stop with your foot on the brake pedal. Cool the brake system down by cruising at 45mph+ for 5 to 10 minutes. Visually inspect your discs.  They should be a blue/grey color (instead of shiny silver), and have an even layer of pad material across and around the entire rotor face. If the AP Racing rotors don’t have a layer of pad material on them, perform another series of stops in the manner outlined above.

355x35mm Replacement Rotor Rings (D52) When your Girodisc rotors reach the end of their service life, these Girodisc GD355.35.52 Replacement Rings are the perfect refresh. Designed for the D52 series 355x35mm two-piece rotor assemblies, this replacement set restores the braking performance and precision Girodisc is known for—without replacing your original aluminum hats. Manufactured in the USA from Girodisc’s proprietary high-carbon cast iron alloy, these rotor rings deliver outstanding thermal capacity, reduced brake fade, and the durability demanded by high-performance driving and track use. They’re a direct bolt-on replacement using your existing Girodisc hats, saving cost while maintaining full performance and reliability. Features and Benefits Direct replacements for Girodisc D52 355x35mm two-piece rotors Machined from proprietary high-carbon cast iron for superior heat resistance 48 curved directional vanes maximize airflow for consistent cooling Balanced and matched to OEM tolerances for vibration-free braking Includes all new drive pins, bolts, and washers Lightweight design minimizes unsprung mass while maximizing stopping power Made and machined entirely in the USA Compatibility Designed exclusively for Girodisc D52 355x35mm rotor assemblies. These rings are only compatible with Girodisc aluminum hats. They are not designed to fit OEM or other aftermarket two-piece rotor systems. Why Choose Girodisc Girodisc rotors are precision-engineered to perform under the most demanding conditions. Every component is CAD-modeled, CNC-machined, and track-tested to deliver exceptional performance, fade resistance, and thermal stability. When it’s time to refresh your setup, Girodisc replacement rings give you the braking feel and control of a brand-new system—without the added cost of new hats. FAQs Do these include the aluminum hats?No. The GD355.35.52 kit includes only the rotor rings and new hardware. Your existing Girodisc hats are reused. Are these compatible with OEM rotors?No. Girodisc replacement rings are engineered specifically for Girodisc hats and will not fit OEM or other aftermarket rotor systems. What’s included in the box?A pair of 355x35mm rotor rings (left and right) and a complete hardware kit including drive pins, bolts, and washers. Are these rotors directional?Yes. Each ring features curved internal vanes optimized for airflow and cooling. Be sure to install them on the correct sides for maximum performance. Ready to Refresh Your Brakes? Restore your Girodisc system to peak performance with the GD355.35.52 355x35mm Replacement Rings. Designed for precision, strength, and cooling efficiency, they’re the ultimate choice for maintaining the world-class braking feel you expect from Girodisc. Order your set today from Competition Motorsport and get back to braking perfection.

Hyundai N 360mm Front Replacement Rings Keep your Hyundai N’s braking system performing at its best with Girodisc 360mm Front Replacement Rings. Designed as direct replacements for existing Girodisc two-piece rotors, these rings let you reuse your aluminum hats to restore peak braking performance without the cost of a full rotor set. Each pair includes all new hardware and instructions for a quick, precise installation. Race-Proven Design for Everyday and Track Use Every Girodisc ring is made from proprietary cast iron poured and machined entirely in the USA. The curved vane internal structure is developed through racing to efficiently pump cooling air through the disc, minimizing fade and maximizing heat dissipation during hard braking. These rings maintain the same outstanding performance and reliability that make Girodisc the go-to upgrade for track enthusiasts. Features Sold as a pair and includes new replacement hardware Direct replacement for Girodisc two-piece front rotors Reuse existing Girodisc aluminum hats for cost-effective service Made from proprietary U.S.-poured cast iron for superior heat management Curved vane internal design promotes exceptional cooling Precision machined and finished in the USA Vehicle Fitment 2022–2025 Hyundai Elantra N 2022–2025 Hyundai Kona N 2019–2022 Hyundai Veloster N Hyundai i30 N (international models) Hyundai N 360mm Front Replacement Rings FAQs: Do these rings fit OEM rotors? No. These rings are engineered exclusively for use with Girodisc hats and are not compatible with OEM or other aftermarket two-piece systems. What’s included in the kit? Two 360mm replacement rings, new hardware, and installation instructions. Your existing Girodisc aluminum hats are reused. When should I replace my Girodisc rings? Replace the rings when they reach minimum thickness or show cracking, warping, or visible heat checking during inspection. Do I need to replace both sides at the same time? Yes, replacing both sides ensures balanced braking performance and consistent wear. Can I install these myself? Experienced DIYers can handle the swap, but Girodisc recommends professional installation to ensure proper torque specs and safety. Do I need new brake pads? While not required, it’s recommended to inspect your pads and consider replacing them with a compound suited for iron rotors to maintain optimal performance. Please note: Girodisc replacement rings are designed to be used only with Girodisc hats unless specifically noted.

Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings Refresh the stopping power on your 2013–2014 Shelby GT500 with Girodisc Rear Replacement Rings. These direct-fit rings let you reuse your existing Girodisc aluminum hats, restoring like-new braking performance while keeping costs and downtime low. Each pair arrives with new hardware and clear instructions for a clean swap. Engineered to run hard and cool Girodisc rings are machined in the USA from proprietary cast iron and use a race-developed curved vane design that pumps cooling air through the disc. The result is consistent pedal feel and fade resistance whether you’re carving back roads or running open-track sessions. Features Sold as a pair; includes new replacement hardware Direct replacement for existing Girodisc two-piece rear rotors Reuse your Girodisc aluminum hats to save money and time Proprietary U.S.-poured cast iron for durability and heat control Curved vane internal design promotes efficient cooling Precision machined and finished in the USA Vehicle Fitment 2013–2014 Ford Mustang Shelby GT500 (S197 chassis) equipped with Girodisc two-piece rear rotors Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings FAQs: Do these fit OEM or other brands’ two-piece rotors? These rings are designed only for Girodisc hats and will not fit OEM two-piece systems or other aftermarket brands unless specifically noted. What’s included in the box? Two replacement rings with new hardware and installation instructions. You’ll reuse your existing Girodisc aluminum hats. When should I replace my rings? Replace when the rotor reaches minimum thickness or if you see heat checking, cracks, or other signs of distress during inspection. Do I need to replace both sides at once? Yes, replacing rings in pairs keeps braking performance balanced side-to-side. Can I install these at home? Experienced DIYers can perform the swap, but professional installation is recommended to ensure correct fastener torque and safety. Do I need new pads? It’s a good time to inspect pads; switching to a compound matched for iron rotors can optimize bite and wear.