by Asmith » Sun Jan 27, 2008 10:11 am
Actually the CRF 250X would be identical to the CRF 250R. Specs and procedure. All parts between the 250's are the same in the valve train up through 2007.
The CRF 450R would be the same as the CRF 450X.
The 250's have the cam gear integral to the shaft, whereas the 450's have a removable cam gear.