The Fit Key Sprocket has a clean and classic design that features an updated tooth profile giving better chain engagement and longer tooth life

allied to our renowned CE EN 1621-1:2012 protective pad and capped with ground-breaking micro inject outer protection results in the most advanced knee protection system on the market

The inner cable wires are stainless steel so they won't rust over time

TYPE: Bolt on

Box Three Pro Rear Race Hub is their most affordable hub

Fit 12" OEM Tyre Size:12x2.1" The Fit Key Sprocket hasA grippy, durable tyre designed with a NIGHTVISION reflective stripe for safety. This tyre is to fit 12" wheels only.