dual piston calipers????

[massdabate]

does anyone know if the trx450r's cailpers will bolt up to the 400ex with out an extra plate?

[K_Fulk]

I think you will need some type of bracket. Looking at 450 and 400 spindles its pretty easy to tell there diffrent.

[sandspanker]

you can use a 250R brake rotor and rotor hub,the 250R barake stay,and the 250R caliper.:p