My son ran over something and warped the rear rotor causing it to bind in the caliper as the wheels turn. I have purchased a new one. It seems pretty obvious how to remove the right rear tire, remove the caliper, and remove the 4 bolts holding on the rotor. I am not so sure how to remove the hub that holds the wheel/tire on. I know that it will have to come off because the rotor only has a 2 inch diameter opening. How do I remove the hub without damaging the axle? Can I remove the hub without taking the tire off to save a step? Here are pictures similar to what I am seeing. Thanks for your help!





Rear Hub

 

It is just held on by the big nut at the end of the axle, remove the Rubber boot, cotter pin, nut and washer and tap the hub from the back and it will slide off of the splines! And yes you can remove the hub with out taking the tire off!

 

Does anyone know what the inside Dia is of the rear hub. Also is there a namebrand replacement for my ATA125A. The 3 lug 70mm lug pattern is whats on it now and would like to use a more common wheel.

 

Is there not a bolt or C-pin holding the hub onto the axle? How does the tire and hub stay on the axle while you are riding? Forgive my ignorance! Thanks!!

 

The end of the axle should look like this (first 3 pics) ! This holds the hub on and the splines on the hub stops the hub from spinning on the axle!
Jetmoto Mods and Repairs

 

Thanks! Now I get it. The hub is held on the axle by the big nut and cotter pin. Thanks for the pics.