Assemble the Rear Wheel

Please refer to the figures and follow the described steps to replace or fix the rear wheel.  Please make sure all the bolts and nuts are properly fastened before confirming the correct axle and its rotational direction.  After gently placing the bicycle upside down: 

Step 1.  Detach the motor-battery connector.

Step 2.  Use a 15mm wrench to loosen the nuts on both sides of the rear wheel.