WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Alpinestars Fluid Tech Carbon Knee Brace

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Alpinestars Fluid Tech Carbon Knee Brace

Shipping & Returns

Orders $100 and over qualify for our free shipping offer. See our full shipping policy for further shipping details.

Return any new, unused and unaltered item within 30 business days. Create a return label online for as little as $7.99. Please read our return policy.


  • The Fluid Tech is lightweight, strong and is constructed from an advanced, high performance carbon polymer compound to offer
  • Strong and advanced high performance carbon polymer compound PA12 LCF reinforced for higher breaking resistance
  • The Fluid Tech features a lightweight "exoskeleton", reduced material construction design
  • Highly ventilated: Channeled padding and mesh zones for optimized ventilation and airflow
  • Innovative patella/knee cup protection system: Ergonomically sculptured and ventilated knee cup system constructed from semi-rigid TPU (Thermoplastic Polyurethane) backed by shock absorbing PU (Polyurethane) memory foam
  • Innovative, dual X-strap system promotes secure fitment of brace in all riding positions and includes combined buckle and Velcro closures for rapid and easy mounting
  • Correct position of knee cup is secured accurately in place with top and bottom elastic straps, allowing multi-directional freedom of movement
  • Soft comfortable lateral knee padding to avoid pressure points
  • Additional protection in strongly angled positions afforded by upper and lower patella cuffs
  • Knee pivot system: Double pivoting hinge system incorporating tool free, fast, easily
  • Exchangeable extension stops (0, 5, 10, 15, 20 degrees) to prevent hyperextension injuries
  • The Fluid Tech incorporates a bioorganic engineering design for superb anatomical performance
  • Directional articulation performance
  • Additional thin Ergo Fit spacer on the medial (bike) side to have the knee closer to the bike
  • Spacers (6mm and 9mm) for improved
  • Innovative spacer system: Brace supplied with leg size adjustment spacers (1mm, 2mm and 3mm) on either side of hinge, plus two pairs of flexible, anatomically optimized "ergofit"
  • SAS (size adapter system): provides adjustable and versatile brace fitment
  • Crucial weight saving: the Fluid Tech is 40 percent lighter than current B2 brace versions
  • Optimized structural integrity and frame strength
  • Softer and comfortable strap system to avoid skin irritations
  • The Fluid Tech is designed to provide a highly customizable, personalized and stable fit in size ranges S/M/L and XL/2XL
  • Extreme temperature resilience: Fluid Tech performs at temperatures as low as -20°C (-4°F)
  • Updated graphics
  • EN 1621-1:2012 K type B / LEVEL 1
  • Black

Alpinestars Knee Brace

Knee Width (in) 3-27/32 - 4-13/32 4-13/32 - 4-31/32
Knee Width (cm) 9.8 - 11.2 11.2 - 12.6

General Sizing information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Knee Width

Using a caliper, measure the width of the knee joint across the kneecap. The leg should be completely straight and in a weight bearing position.


Fluid Tech
Age & Gender
Model Name for Gear
Fluid Tech

Item Numbers

Details Item Number Availability Store Pickup
Details:  S-L Item #020-2704-0367 Availability:Backorder: Ships in 7-12 daysStore Pickup:Unavailable
Details:  XL/XXL Item #020-2704-0368 Availability:In stock: Ready to shipStore Pickup:Unavailable
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


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