by JimDirt » Sun Apr 17, 2016 7:35 am
As far as i know the X and R flywheels are not interchangeable , the crank itself has a different end on it , so the nut/shaft size is different , as well as the overall size of the flywheel and stator are different diameters , and the X stator would not fit in a R ignition cover *as far as i know* , R is only R and X is only X on Flywheels as far as i understand , the only ones it might fit is 09-12 (maybe) because the crank end/nut is the same as the X (the X and 09-12 R use the same flywheel puller , the 02-08 R use a different puller)
2020 CRF450R
2006 CRF450X

Weiser , Idaho