Different Parts

[Quadguy08]

What 250r parts can switch to other quads or vice-versa?

[wilkin250r]

There are obviously some similarities with other Honda quads. Wheels and other smaller stuff. I believe aftermarket shocks are swappable between the 250R and 400EX, but for major components like A-arms, swingarm, or anything of that sort is not going to fit any other quads directly.

[Quadguy08]

Are the 250r and 400ex axles be able switch each other?

[wilkin250r]

Try a search in the suspension section. From what I've heard, I think it will fit into the carrier just fine, but the wheels hubs are different. So if you want to put a 250r axle into a 400EX, you would also need the 250r hubs.

But I could be mistaken, do a search to make sure.