hey guys i have a jato2.5. i added back and front rpm a arms! and i noticed when i put it bk together the back wheels dont rotate good at all! its hard to move them forward and backwards s pretty easy! but thats when its not started!

When i have the engine do it with the throttle! one tire bows out and gets skinny and the other one dosent? any idea? do i need parts? help!

Post a couple of pics but Im pretty sure you put it together wrong or something.... I have RPM arms on both sides and evrything is smooth...!

and its acully stopping my engine at high speeds because the wheel wont turn!

lets see some pics on how you installed them. I hae RPM all the way around my Jato and never had issue. I can't think of what it could be. Post some pics and maybe we can help.