Compatable parts?

[rookiex]

How many parts are compatible an transferable from a 250r and 400ex to a trx450r?

front shocks

[parkers30]

no.... no the shocks are not a bolt on from the R and ex onto a 450r.... They are very different

Basic things tires, whees, bars

foot pegs from an ex onto the 450r

I'm sure there is more

u can make the shocks fit pritty easy.

handle bars and the 450r shing arm is susposed to fit a 400ex with little moding

[parkers30]

just beacuse things fit do NOT mean they are compatible, just because the same 10mm mounting bolt is used top and bottom does not mean valving is anwhere near the same, nor that the free or compressed length are right to not destroy your a-arms

Stick with parts designed for your wheeler unless the manufacturer tells you it will work, OR if it is not going to cause damage to other parts like nerf, pegs, etc.

[400exrider707]

bumpers, rims, maybe axle if you use the 400ex carrier. handlebars, just the obvious like everyone else posted. gas caps, and I believe I've read that front rotors are the same for almost all honda sport quads, but double check on that. Handlebar clamps also fit