250r arms on a 400ex?? help needed fast

[quader400]

trying to find out if 250r a-arms will fit on a 400ex. i know the spindles are diffrent just wondering if they will bolt up the frame. trying to find out fast before these a-arms sell out from under me. thanks for help jake

[MossboysRacing]

Yes 250r a-arms will fit on a 400ex. I run a 400ex front end on my R so they will fit. Your 400ex spindles will will fit 250r a arms too.

[danbobsR]

I had 400 ex arms on my R but they were narrower where they slide into the frame I had to washer them tight I would think if you were putting R arms on a 400 you would have to grind them on the ends so they would go into the frame. .02