NOTE: This is for EXPERT Ebike mechanics only
Replacement Stock Steel Gear for the M600 drive. Those who want to switch back to the original steel gear.
This will require a special tool to remove the M600 spider....the Bafang socket tool is ideal and we are out of stock of this tool until early March. This tool will also work: Bike Hand YC-29BB-2A or YC-29BB.
Without the socket, getting off the old spider will be tricky.
This is at minimum a one hour job to remove the M600 drive and install the gear and reinstall the drive. It can be as long as 3 hour job for an expert the first time they do it. For this reason we do not recommend for people to attempt this themselves.
How to remove the chainring bracket from the motor:
This is recessed so a typical ring spanner will not work. A socket style bottom bracket tool for screw in bearing cups does the job. A chain whip is needed to hold the chainring when removing the locking nut. The lockring is reverse or right hand-threaded, so you must turn it clockwise to remove it.
Please note while installing you will need to grease the gear with Mobil28 as well.