NOTICE:

This freewheel is only compatible with the 219H sprocket 2.0. If you do not have the 2.0 version, you will either need to purchase it (link below) or modify your current 219H sprocket.

Compatible with X1 Pro Gen 2 & X1 Stealth Gen 1 ebike conversion kits with freewheel 2.0 upgrade option only.

Get the complete upgrade kit here.