250r, 400ex and 450r brake rotor hubs the same?

[Honda 250r 001]

Im needing a rear rotor for my 250r, and i have plenty of 3 bolt rotors laying around but no stock 4 bolt rotors. The 450r rear brake hub is 3 bolt, will that hub work on the 250r so i can run a 3 bolt rotor?

[deathman53]

they are all 3 bolt and a very similar bolt pattern, but different diameters. I believe the 250r is the smallest, 400ex and 450r might be the same exact rear rotor. I do know that 88/89 250r, 400ex and 450r front rotors are the same. Also everything except the caliper body and adapter are the same as 250r front calipers.

[dustin_j]

The 400ex rear rotor is larger diameter than the 450r.

[Honda 250r 001]

so does the 450r rear brake hub and rotor fit a trx 250r? is the 88-89 stock rear hub 3 bolt?

[deathman53]

The 450r REAR rotor fits a 250r anti-fade. A 85-89 250r REAR rotor will fit a 450r anti-fade also. About 5 years ago I bought a 250r anti-fade from a guy who got it and was told it would fit correct on a 05 450r. Everything lined up right, except the axle circlip was too far out on the 450r axle, it wouldn't tighten up right. A 250r anti-fade will fit a 350x, 250x/300ex, 400ex, and 450r, the difference is the rotor bolt pattern, spacing off the carrier and how far the adjustment nut goes out.

[Honda 250r 001]

So will the stock 450r rear brake hub fit right on the 250r? I cant tell for sure by your last posts.
Thanks

[deathman53]

yes, it will, you will need to use 250r axle locknut. splines and diameter are the same with 350x, 85-89 250r, 250x/300ex, 400ex and 450r, offsets and how far the axle circlip is are the differences. You may have to space the 450r or 250r caliper for it to fit right.

[ryanowarrior]

so does this mean a 400ex axle will work on a 250r? using the 250r brake hub and locking nut? but still able to use 450r caliper maybe?

[deathman53]

yeah, a 400ex and 450r axle will work in a 250r, I hear there is something you need to do to use a 450r axle, its really close to a exact fit. The 450r(especially 04/05) and 88/89 250r are so close, that its measured by millimeters in most of the chassis. The 400ex is close, but not as close as 450r.

[ryanowarrior]

ok thanks ^^ i got a 450r rear brake set up and ima tryin to figure out what all i need of each quad to make it all work in the rear end. if that makes since lol