? 400ex and 450R bearing carrier same or different?

[cbr600ex]

Just wondering if anyone might know if the bearing carrier for a 2002 400ex arethe same as a 450r's? Please let me know if you know. Thanks

[JH Racing]

They are different the 450R is narrower

[Johnny B]

they are way different, the 450 uses 3 bearings instead of 2 like the 400