250 and 450 swing arm and brake Questions.

5 replies to this topic
  • spc mike

Posted May 03, 2009 - 05:48 PM


Is the swing arm and the rear brake setup on the 450's and 250's the same between each other? What about the axle size between the two?

  • grayracer513

Posted May 03, 2009 - 06:36 PM


Within the same year series, they are the same.

  • spc mike

Posted May 03, 2009 - 09:09 PM


Thanks gray... Also would you happen to know if the rear brake from a 2003 YZ fit on a 2005 WR swing arm?

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  • grayracer513

Posted May 03, 2009 - 09:42 PM


Don't know that one. The '05's show a different caliper hanger than the '03-'04, but it may fit.

  • spc mike

Posted May 03, 2009 - 10:08 PM


..different hanger on the caliper mount or the swing arm itself? Is the '03-'04 the same style hanger as the yz426f?

  • grayracer513

Posted May 04, 2009 - 05:48 AM


It's difficult to tell from the parts catalog, since the hanger is not sold separately. However, the parts listed are different. Scotts makes a rear disk protector that includes the caliper hanger, and is listed for the '05 separately from the '03-'04. That could be because the actual caliper is different, or because the swing arm is. I would guess it was the caliper, and that the earlier caliper/hanger would fit, but it's just a guess.

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