450r swing arm on 400ex

[BamBam21]

Anyone know if it will bolt on and if so what are the length diffs. I've heard diff year 450s have diff lengths. Anyone have a center to center length??

Thanks Bb

[sc400ex_rider]

use the search this is a heated topic as much as the uni vs the k&n. some say you can and some say you cant. the ones who done it say you have to use the 450r rear caliper and mount maybe the rotor ect.