For DAX Skyteam, Zhenhua and other replicas.
Compatible with hubs with 4 screw rear sprocket attachment.
This kit includes :
the 32 teeth 7mm offset sprocket with 4 screws,
the offset sprocket 15 teeth 7mm with 2 screws
For chain 420, sprocket inner diameter 17mm.
Delivered with screws and locking ring.
Ideal when mounting 4.0 inch wide rims.
Prevents your chain from rubbing on the rear tire!