Owner manual
3. Remove the two chain tensioners and axle nuts.
Using the M5 allen key and M4 allen key, unscrew the bolts
of each side and release the wheel. Using the 21mm wrench,
remove the flange nuts on both sides of the wheel.
For more
details consult the previous section "Chain Tension".
5. Remove the wheel. Move the wheel forward to
separate the chain from the rear hub, then pull the wheel
backwards to remove it. Keep the washers for the new
wheel.
6. Fit the new wheel. When adding the new wheel, keep
the washers and the motor cable on the inner side. Make
sure the washers are pointing backwards and to the outside
Then put the chain in the rear hub and place back the chain
tensioners and flange nuts. Tighten everything back. Make
sure to keep the wheel centered while tightening.
7. Rear wire. Finally, reconnect the previously
disconnected motor cable.