This version of gearbox was superseded July 2018 for XT’s models and now uses 64598 and 64599 gearbox.
M8 bolt use to hold wheel on.
Important fitting instructions.
Always use thread locking compound (Loctite ™ 277) or similar to M8 bolt when re fitting wheel on gearbox shaft.
Tension M8x20 bolt. Torque = 25 N-M.
Apply small amount of grease to gearbox shaft and hub when re-fitting hub.