How to Replace the Rear Wheel of a Segway Ninebot ES4

Place the scooter on its side and locate the two access screw holes.

Use a flathead screwdriver to remove the protective inserts.

Use a 3/32" hex key wrench to remove the screws that are securing the rear casing.

Remove the rear casing and disconnect the rear light power cable.

Reposition the scooter to allow access to the opposite side. Then, repeat steps 1-3 to expose both sides of the rear wheel.

Use a T25 star screwdriver on each side to remove the screw securing the axle.

Insert a screwdriver into the hole where the screw was removed.

Use it to push the axle out from the opposite side.

Locate the rear wheel replacement.

Insert the axle into the scooter's rear axle housing.

Once the axle is in place, position the replacement wheel onto the axle while it is inside the scooter.

Place the star screw on the side opposite to where the axle was inserted.

Use a T25 star screwdriver on each side to tighten and secure the rear axle.

Before reinstalling the rear casing, connect the rear light power cable.

After connecting the cable, reinstall the rear casing.

Use a 3/32" hex key wrench to install the screws that secure the rear casing.

Place the protective inserts back inside the screw holes.

Reposition the scooter to allow access to the opposite side. Then, repeat steps 8-11.