
Alpinestars
Alpinestars Bionic Rib Protector
from $139.95
Alpinestars Bionic Rib Protector
Alpinestars Bionic Rib Protector – Lightweight Kart Rib Protection Engineered for Performance
Every racer knows the rib cage takes a beating in competitive karting. The Alpinestars Bionic Rib Protector offers precision-engineered, lightweight protection that keeps you comfortable and in control. Designed for both amateur and professional kart drivers, this kart rib protector is ideal for minimizing fatigue while safeguarding against high-impact forces. Whether you're grinding out laps at your local circuit or chasing podiums on the national stage, the Bionic delivers the protection you need without slowing you down.
Crafted with a high-density impact-resistant shell and internal bio-foam padding, the Alpinestars Bionic Rib Protector is contoured for a race-focused fit under your kart suit. Adjustable elastic straps ensure a secure, customizable hold, while the ventilated design keeps airflow high during long sessions. It’s the perfect blend of comfort, mobility, and safety—built by a brand trusted across all levels of motorsport.
A high-performance, lightweight, ergonomically constructed guard for the ribs and kidneys, the Bionic Rib Support incorporates intelligent adjustment features to offer kart drivers a supremely comfortable, customized and supporting fit.
ALPINESTARS BIONIC RIB PROTECTOR CONSTRUCTION
Technical, multi-layered main construction for optimized performance fit, protection and comfort:
Advanced, soft poly-lycra inner lining means protection can be worn under or over garment.
Dual composition padding incorporating 3mm high density poly-foam layer laminated with 4mm absorption EVA.
Incorporates specially selected materials and components to offer crucial weight-saving performance.
External 500 denier Cordura® outer for high resistance to abrasion.
ALPINESTARS BIONIC RIB PROTECTOR FEATURES
Dual-density, strategically positioned, ergonomically shaped protectors incorporate fiberglass core and robust PE hardshell outer for excellent impact and shock dispersion.
Central adjustable back panel with Velcro attachments offers complete range of fit allowing protection to be worn under or over garment.
Fully adjustable front strap with a D-ring closure features elasticated section for comfort.
Adjustable shoulder straps constructed from highly breathable 3D mesh with elasticated gusset for snug fit.
Perforated rear for comfort and ventilation.
ALPINESTARS BIONIC RIB PROTECTOR PROTECTION
Dual-density, strategically positioned, ergonomically shaped protectors incorporate fiberglass core.
Robust PE hardshell outer for excellent impact and shock dispersion.
ALPINESTARS BIONIC RIB PROTECTOR SIZE CHART
FAQ – Alpinestars Bionic Rib Protector
Q: Is the Alpinestars Bionic Rib Protector FIA certified? A: No, the Bionic Rib Protector is not FIA 8870 certified, but it offers excellent protection for club-level and regional karting events.
Q: What sizes are available? A: The Bionic Rib Protector is available in multiple adult and youth sizes, designed for various chest circumferences. Check the size chart for details.
Q: What materials are used in the construction? A: It features a rigid outer shell paired with internal bio-foam padding for a balance of protection and comfort.
Q: Can this rib protector be worn under a kart suit? A: Yes. The low-profile, contoured design allows it to fit comfortably under most CIK/FIA-compliant karting suits.
Q: Who is this rib protector best suited for? A: It’s ideal for junior and adult kart racers looking for reliable protection without the added weight or bulk of a certified model.
Q: Is the Bionic Rib Protector adjustable? A: Absolutely. It includes elasticated and adjustable Velcro straps for a secure, race-ready fit.
Q: Does this protector offer ventilation? A: Yes, the design features strategic perforations and a breathable liner to help reduce heat and keep airflow high.

Alpinestars
Alpinestars AK-1 Kart Body Protector
from $499.95
Alpinestars AK-1 Kart Rib Protector
Alpinestars AK-1 Kart Rib Protector – FIA 8870 Protection With Pro-Level Comfort
Every corner, every bump, every lap—your torso takes the punishment so your focus can stay on the track. The Alpinestars AK-1 Kart Rib Protector is engineered to absorb that impact while delivering the unrestricted mobility elite drivers demand. Designed for high-performance karting and built to the strict FIA 8870-2018 rib protector standard, the AK-1 blends serious protection with lightweight comfort for both aspiring and professional kart racers.
Constructed from a high-density thermoformed outer shell and a soft, energy-absorbing foam interior, this kart rib protector conforms to your body for a secure fit without pressure points. Its adjustable shoulder and waist straps keep the protector locked in place during aggressive driving, while strategic ventilation ensures airflow under your suit. Whether you're running local sprints or national-level CIK competitions, the Alpinestars AK-1 gives you the edge in safety and performance.
Alpinestars AK-1 Kart Rib Protector Highlights
Certified to FIA 8870-2018 kart rib protector standard for race-ready safety
Durable thermoformed outer shell absorbs high-energy impacts
Lightweight and low-profile design fits easily under kart suits
Soft interior padding and airflow channels for cooling comfort
Adjustable straps for a customized, secure fit during intense sessions
Alpinestars AK-1 Kart Rib Protector Size Chart
FAQ – Alpinestars AK-1 Kart Rib Protector
Q: Is the Alpinestars AK-1 certified for competition?A: Yes, it meets the FIA 8870-2018 homologation, which is required in many national and international karting series.
Q: What materials are used in the AK-1’s construction?A: The AK-1 features a thermoformed outer shell for impact protection and a soft energy-absorbing inner liner for comfort and fit.
Q: Is the AK-1 suitable for younger drivers or just adults?A: It’s available in a range of sizes, making it ideal for both junior and senior kart racers.
Q: Can this be worn comfortably under a karting suit?A: Absolutely. The low-profile design and ergonomic shape allow it to fit snugly under most modern karting suits without restriction.
Q: How is the AK-1 secured during racing?A: The protector uses adjustable shoulder and side straps to keep it firmly in place even during hard braking and cornering.
Q: Does it offer ventilation for longer races?A: Yes, it includes integrated ventilation channels to reduce heat buildup and maintain driver comfort.
Q: Is this rib protector accepted at CIK and WKA events?A: Yes, the FIA 8870 certification makes it widely accepted at CIK, WKA, and other major karting events worldwide.
Race harder. Protect smarter. The Alpinestars AK-1 Kart Rib Protector gives you FIA-approved safety without sacrificing mobility or comfort.