pmsimkins said:If your motor currently has the black upgrade rotor you do not need to change the endbell, you already are running the big bearing. If you are still on the original gray rotor then yes you need the endbell. This is in reference to 4300. All the 13.5s orinally came with the black rotor and big bearing endbell so they do not need a different endbell.
I know, it's off subject, but... why does ANYONE want to go with other brushless manufactures? I am sure NOVAK will come out with bigger and better rotors, but least you all forget, oval isn't the only form of R/C racing. :wave: Ruling bodies (ROAR and ARCOR) should separate and make the rules, simple for us simpletons. :thumbsup:OvalTrucker said:The initial release of the 13.5 was accidentally shipped with the gray rotor and small bearing endbell. I had one. You can contact NOVAK if you have one of them and they will send an upgrade. You'll need the serial number from the motor though.
My upgrade included the sintered rotor. I was expecting the black rotor. It was a pleasant surprise.