Sparco ULTRA QRT Racing Seat 

Ultra-lightweight racing seat performance without the premium price of carbon fiber. The Sparco ULTRA Racing Seat combines advanced fiberglass composite construction, a minimalist design, and exceptionally low weight to deliver a competition-ready seat for serious motorsport enthusiasts.

Weighing just 11.4 lbs (5.2 kg), the Sparco ULTRA is one of the lightest fiberglass competition seats in the Sparco lineup. Its innovative QRT Ultra-Light Technology and exposed composite shell eliminate traditional fabric upholstery and padding, helping reduce weight while improving the driver's connection to the vehicle.

Designed specifically for narrow cockpits, the ULTRA provides an exceptionally compact exterior profile while accommodating standard- to larger-build drivers. Its sculpted monocoque shell delivers ergonomic lumbar support, natural recline, and a low seating position without unnecessary bulk.

With FIA 8855-1999 homologation, the Sparco ULTRA delivers professional motorsport construction for drivers looking to reduce vehicle weight, optimize cockpit space, and improve their racing position.

Sparco ULTRA Racing Seat Key Features

• FIA 8855-1999 Approved: Homologated fixed-back competition racing seat.
• Ultra-Lightweight Design: Weighs approximately 11.4 lbs (5.2 kg).
• Advanced Fiberglass Construction: Lightweight composite shell engineered for exceptional strength and rigidity.
• QRT Ultra-Light Technology: Sparco composite manufacturing technology designed to minimize weight without sacrificing performance.
• Unpadded Racing Shell: Eliminates traditional upholstery and foam cushioning for maximum weight reduction.
• Low Seating Position: Minimalist shell design allows drivers to sit closer to the vehicle floor when appropriately mounted.
• Narrow Cockpit Compatibility: Compact exterior dimensions accommodate space-constrained race car interiors.
• Integrated Lumbar Contouring: Ergonomic shell shape provides natural back and lumbar support.
• Direct Chassis Feedback: Rigid construction helps drivers feel vehicle movement more directly.
• Integrated Harness Openings: Designed to accommodate compatible multi-point racing harnesses.
• Side-Mount Configuration: Compatible with appropriate competition seat mounting brackets.
• Exposed Composite Finish: Purpose-built racing appearance without conventional upholstery.

What Is Sparco QRT Ultra-Light Technology?

QRT stands for Quick Resin Tech, Sparco's advanced composite manufacturing technology developed to reduce racing seat weight while maintaining excellent structural performance.

Developed in Sparco's OEM Composite Laboratory in Italy, QRT technology utilizes advanced fiberglass manufacturing processes inspired by aerospace composite construction.

This technology allows Sparco to manufacture fiberglass racing seat shells with substantially less weight than many conventional fiberglass designs, approaching the performance characteristics of more expensive carbon fiber alternatives.

The Sparco ULTRA takes this weight-saving philosophy even further by eliminating traditional seat upholstery and padding.

The result is an exceptionally lightweight racing seat that delivers an outstanding balance of affordability, structural rigidity, and professional motorsport performance.

11.4-Pound Ultra-Lightweight Racing Seat

Weight reduction is one of the most effective ways to improve overall race car performance. Reducing unnecessary vehicle mass can benefit acceleration, braking, handling, and responsiveness.

At approximately 11.4 lbs, the Sparco ULTRA provides significant weight-saving potential compared with heavier upholstered competition seats.

Its fiberglass composite monocoque construction eliminates unnecessary material while preserving a rigid and supportive shell.

For drivers building lightweight track cars, time attack vehicles, or dedicated competition machines, the ULTRA provides a practical alternative to more expensive carbon fiber seats.

Minimalist Shell Design for Maximum Driver Feedback

The Sparco ULTRA Racing Seat is engineered to be used without conventional fabric upholstery or foam padding.

By removing these components, Sparco reduces overall weight and creates a more direct physical connection between the driver and the vehicle.

The rigid fiberglass shell allows drivers to experience vehicle movement and lateral loading with less cushioning between their body and the seat structure.

Its contoured seating surface provides natural support through an ergonomically designed backrest, lumbar section, and lower seat profile.

This unique approach combines lightweight construction with a focused, competition-oriented driving experience.

Low Seating Position for Better Cockpit Fitment

The Sparco ULTRA's minimalist construction can help drivers achieve a lower seating position compared with traditional padded racing seats, depending on the vehicle and mounting arrangement.

A lower seating position can offer several advantages in dedicated competition vehicles.

• Additional helmet clearance beneath roll cages and roof structures
• Improved driver positioning in low-roof vehicles
• More flexibility when positioning the steering wheel and pedals
• Reduced seating height for drivers with longer torsos
• Potential for a lower driver center of gravity

The actual installed height depends on the seat brackets, mounting points, floor configuration, and driver requirements.

Designed for Narrow Racing Cockpits

The Sparco ULTRA is particularly well suited to race cars with limited interior space.

Its compact fiberglass shell helps accommodate vehicles equipped with roll cages, door bars, center tunnels, and specialized racing equipment.

Despite its narrow exterior design, the ULTRA offers an ergonomically contoured seating area intended to accommodate a range of driver builds.

This makes it an appealing option for compact sports cars, track-focused builds, and custom racing applications where conventional competition seats may create clearance problems.

FIA 8855-1999 Racing Seat Homologation

The Sparco ULTRA carries FIA 8855-1999 homologation, making it suitable for motorsport applications that accept this competition seat standard.

Its fixed-back fiberglass construction is designed for the structural and safety requirements of competitive motorsport.

Always verify the seat's homologation label, expiration date, installation requirements, and eligibility under your racing organization's current regulations.

Sparco ULTRA Racing Seat Specifications

• Manufacturer: Sparco
• Model: ULTRA
• Manufacturer Part Number: 008037FNR
• Product Type: Fixed-Back Competition Racing Seat
• Homologation: FIA 8855-1999
• Shell Material: Lightweight Fiberglass Composite
• Construction: QRT Ultra-Light Composite Technology
• Weight: Approximately 11.4 lbs (5.2 kg)
• Finish: Black Exposed Composite
• Upholstery: None
• Size: Single Size
• Fitment Guidance: Medium/Large – approximately up to a 36-inch waist, depending on driver proportions
• Mounting: Side-Mount Configuration
• Recommended Applications: Track Days, Club Racing, Time Attack, and Dedicated Competition Vehicles

Sparco ULTRA Racing Seat Sizing Chart

The Sparco ULTRA utilizes a competition-oriented side-mount configuration designed to accommodate its unique fiberglass shell.

Due to the seat's low-profile construction, compatible side-mount brackets are necessary to position the seat correctly and securely within the vehicle.

Mounting hardware and brackets must be selected according to the seat's mounting specifications and the vehicle's installation requirements.

Important: Verify bracket compatibility and the required mounting bolt specifications before installation. Universal seat mounts may not accommodate the ULTRA's shell geometry.

Vehicle-specific seat mounting components may be required and are sold separately unless otherwise stated.

Sparco ULTRA Racing Seat Size and Dimensions

The Sparco ULTRA is offered in a single-size configuration intended to accommodate standard- to larger-build drivers while maintaining a compact exterior footprint.

Its narrow shell design makes it particularly useful for racing applications where cockpit width and roll cage clearance are limited.

Driver Fitment: Approximately Medium/Large, generally suitable for drivers with waist measurements up to 36 inches, depending on hip width, torso proportions, and seating preference.

Published dimensions for the Sparco ULTRA fiberglass seat include:

• Maximum Front Width: 17.76 inches (451 mm)
• Maximum Rear Width: 17.13 inches (435 mm)
• Front Mounting Width: 14.72 inches (374 mm)
• Rear Mounting Width: 13.90 inches (353 mm)
• Overall Height: 33.46 inches (850 mm)
• Side Mounting Spacing: 11.42 inches (290 mm)

Fitment Recommendation: Measure the available cockpit width, seat rail placement, roll cage clearance, and driver seating position before ordering. Confirm critical dimensions against the current Sparco technical drawing for the ULTRA fiberglass seat.

Sparco ULTRA vs. Sparco ULTRA Carbon Racing Seat

Both Sparco ULTRA models share a minimalist design philosophy focused on lightweight construction, narrow cockpit compatibility, and direct driver feedback.

The primary difference is the shell material and weight.

The Sparco ULTRA fiberglass seat is an excellent option for drivers seeking ultra-lightweight performance at a more accessible price point.

The ULTRA Carbon is designed for competitors prioritizing the absolute lowest possible seat weight through advanced carbon fiber construction.

Sparco ULTRA Racing Seat Frequently Asked Questions

How much does the Sparco ULTRA Racing Seat weigh?

The Sparco ULTRA weighs approximately 11.4 lbs (5.2 kg), making it one of Sparco's lightest fiberglass racing seats.

Is the Sparco ULTRA FIA approved?

Yes. The Sparco ULTRA carries FIA 8855-1999 homologation. Competition eligibility depends on the seat's homologation status and the racing organization's current regulations.

What is the Sparco ULTRA Racing Seat made from?

The seat is manufactured from lightweight fiberglass composite material using Sparco's advanced composite technology.

What is QRT technology?

QRT stands for Quick Resin Tech, a Sparco composite manufacturing technology developed to reduce fiberglass shell weight while maintaining structural performance.

Does the Sparco ULTRA include seat padding?

No. The ULTRA is designed for use without conventional fabric upholstery or foam padding. Its contoured composite shell provides the seating surface.

What size driver fits the Sparco ULTRA?

The seat is offered in a single-size configuration, generally described as Medium/Large and suitable for drivers with waist measurements up to approximately 36 inches. Driver fit depends on body proportions and should be evaluated before purchasing.

Is the Sparco ULTRA suitable for narrow race car interiors?

Yes. Its compact exterior design makes it particularly suitable for race cars with limited cockpit space, although vehicle-specific clearance must be confirmed.

Does the Sparco ULTRA provide a lower seating position?

Its minimalist, unpadded shell can help achieve a lower seating position when installed with compatible brackets and appropriate vehicle mounting points.

What is the difference between the ULTRA and ULTRA Carbon?

The standard ULTRA uses lightweight fiberglass composite construction and weighs approximately 11.4 lbs. The ULTRA Carbon uses pre-preg carbon fiber and weighs approximately 8.3 lbs, providing additional weight savings.

Are seat mounting brackets included?

Mounting brackets and vehicle-specific installation hardware are separate unless specifically listed as included. Confirm the required bracket and fastener specifications before installation.

Can the Sparco ULTRA be used for track days and club racing?

Yes. The ULTRA is designed for motorsport applications, including track days, time attack, and competition events that accept its homologation and mounting configuration.

Shop the Sparco ULTRA Lightweight Racing Seat

Experience professional motorsport seat technology with the Sparco ULTRA Racing Seat.

Combining an ultra-lightweight fiberglass composite shell, FIA 8855-1999 homologation, minimalist ergonomics, and compact cockpit fitment, the ULTRA delivers performance-focused engineering for serious drivers.

Whether you're building a lightweight track car or upgrading a dedicated competition vehicle, the Sparco ULTRA offers exceptional weight-saving potential and a direct connection to your race car.

Upgrade to the Sparco ULTRA Racing Seat and experience the advantages of lightweight competition seating.