To take off the rear motor wheel of an e-bike to change a flat tire, follow these general steps:
Gather the necessary tools: You will typically need a set of Allen wrenches or a socket set, depending on the type of bolts or nuts used to secure the wheel.
Power off and disconnect the battery: Before starting any maintenance on your e-bike, it's crucial to turn off the power and disconnect the battery to ensure safety.
Shift gears to relieve tension: Shift the bike's gears to the smallest chainring and the smallest rear cog. This will help relieve tension on the chain and make it easier to remove the wheel.
Loosen the axle bolts or quick-release skewer: If your e-bike has a bolt-on axle, use the appropriate wrench or socket to loosen the bolts on each side of the axle. If it has a quick-release skewer, open the lever to release the tension and then unscrew it from the non-drive side.
Remove the wheel: Once the bolts or skewer are loosened, gently lift the rear of the bike and pull the wheel out of the dropouts. Be cautious with any electrical connections related to the motor or any integrated sensors.
Repair or replace the flat tire: With the wheel removed, you can proceed to repair or replace the flat tire as needed. This may involve removing the tire and tube, patching the tube, or installing a new tube or tire.
Reinstall the wheel: Once the tire is repaired or replaced, align the wheel with the dropouts on the frame, making sure any electrical connections are properly oriented. Slide the wheel into the dropouts fully, making sure it is centered and straight.
Tighten the axle bolts or quick-release skewer: If you have axle bolts, tighten them evenly on both sides using the appropriate wrench or socket. If you have a quick-release skewer, insert it through the axle and thread it into the non-drive side until it's snug. Then close the lever securely.
Reconnect the battery and test: After ensuring everything is properly secured, reconnect the e-bike's battery. Conduct a quick test to ensure the motor and wheel are functioning correctly before riding.
Please note that the specific steps may vary slightly depending on the make and model of your e-bike. Always refer to the manufacturer's instructions or consult a professional bike mechanic if you're unsure about any aspect of the process.