Chosen Solution
As you can see from this pic , I have difficulties to separate the wheel from its axle because it has no screws. The reason I am doing this is the gearbox in it might be broken , so I need to get the wheel out to fix it. Is anyone there who can help me ?
@dwightlee looks like your rim is actually two parts.
I would first check through the slots in the front to see if there are any king of clips that hold it on.
Also, check the outer part of the rim and see if it will pop off to reveal how the rim is actually mounted to the axle. It is not a press fit where you can just pull it off.
