450r carrier and axle in 250r swingarm

[dabomb_350x]

I have a project bike that I am working on it a TRX250X with 250R suspension . I am looking to put a 450r caliper on the rear. My question is will a 450R carrier fit in a 250R swingarm or do I need to go with 400ex carrier and axle and just put the 450r brake conversion on it to make it work?

[Derrick Adams]

From my experience your going to want to stick with the 250R/400EX carrier.
You may want to look at the 450R axle though for chain alignment. Never done that engine swap, just pointing out that the 250R vs 450R axle offers about 1/2" difference from left to right.

[Jason Hall]

If you use the 450r brake stay & caliper along with the 450r rotor hub/rotor. It should bolt right up to the 250r, or 400ex carrier and the 250R swingarm.