How many pistons: This is the 4-piston version

and moisture-wicking properties

Also compatible with Shimano STEPS Hollowtech II e-bike motor lockrings

The new Oseus VPD Elbow protector gives the freedom to ride anywhere

Asymmetric reservoir position for improved compression lever ergonomics and versatile frame fitment

SERYT Flow Knee Pads - M - Checker Red Dangerous Goods How many pistons: This isThe SERYT Flow knee pads are designed to give you comfort and protection during your outings, available in 15 graphic versions to meet all needs. CE EN 1621. 1 Level 1 certified, they offer maximum impact protection while maintaining high comfort thanks to the special thermoplastic polymer of which the protective pattern is composed. The specific construction of the protective pattern ensures a continuous flow of air while keeping the knee cool and