G-Form PRO-X2 Unisex Slip-On Knee Guard Black Small/Medium Sunshine_Enriched The PowerSpline has a heat

The PowerSpline has a heat treated chromoly 12 spline spindle to make sure it can go the distance with even the most demanding riders

but may also be stacked and used with 9-speed shifter

Bead Socket Technology (BST) secures the bead of the tire creating an air tight seal while allowing the the tire's sidewall to expand to it's true

bigger sizing options

G-Form PRO-X2 Unisex Slip-On Knee Guard Black Small/Medium Sunshine_Enriched The PowerSpline has a heatThe Pro X2 features a fully articulated design for unparallel freedom of movement so you stay focused on the trail ahead. Body mapped, impact absorbing RPT pads protect from impact Moisture wicking, UPF 50+ compression fabric keeps you dry and comfortable Two panel design for second skin fit Top and bottom silicone gripper bands to ensure pads stay in place Additional front pad ventilation holes improve air circulation