EXTRA LITE freewheel body SRAM XD for HyperRear hub
Spare freewheel for modification into the SRAM XX1 group for Extralite HyperRear rear hubs. The freewheel is not based on the ratchet principle as for example from Acros or Tune (Kong / Prince) is used but on a spur gearing with 36 teeth as in the featured Tune decibels. The Micro Tuner allows easy adjustment of the bearing clearance, oversize axle with 17mm diameter for maximum stiffness and durability. The freehub body has been designed for maximum loads and also operates at about half a ton of force on the chain.