Originally Posted by MrPulldown
Noticed you said that the 350 has larger axles? Whouldn't that make the wheels different? Can you simple stick the 350 axles into the 250?
The Honda NX650 and XR650L have different sized axles, but use the same hub. They do this by using different wheel bearings. So it's highly possible you could do this with the DR's too, but I didn't measure the outer bearing diameters to see if they were the same. The DR250S's front hub has a four bolt rotor, and the 350's hub has a six bolt rotor so that's another difference between the two.