HxR Components EasyShift Rear Hub - Sram XD

. HxR's EasyShift front hub is a unique 2 in 1 hub that will allow you to convert a fixed gear rig into a modern transmission with an integrated freewheel. Strong, light, and durable, this innovative hub design will evolve your bike without the need to change large swathes of hardware at a huge expense Features Material 7075 T6 Aluminium32h135x9mm135x12mm142x12mmWeight 280gBuyHxR Componentsfrom Chain Reaction Cycles, the World's Largest Online Bike Store.