Guys, I have a warped rear rotor on an '06 ultra. I replaced my front rotors with floating rotors and have the take offs. Does anyone know if the fronts will fit on the rear?

Thanks,
Mike

 

Do they look the same?

 

Front rotor bolts are 5/16" and the rear are 3/8" so you won't be able to simply bolt a front rotor onto the rear wheel. You can bore out the bolt holes on a front rotor to 3/8" and then use it on the rear.

 

And while you are at it you need to machine a collar to fill the gap as your front rotor registers are 2.224" and your rear is 2.0". If you wish to run the rear rotor without a collar than all of the rotational load will be placed on the bolts and they will twist just as crooked as the banking world on wall street. Once some of the bolts finally shear than the rotor will **** than the rest of the story is unknown. $45 gets you a new one on e-Bay.

 

I think I'll do a new rotor, Thanks all.