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Yz250 shock springs

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Does anyone have a 5.2 kg shock spring for a 05 yz250 for sale? I found one in the classifieds for an 09 kx450 but I wasn't sure if it would fit or not. Any other make/model shock springs the same as the yz250?

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I have stock springs from an 03 WR450 that are 5.2 kg.  I also have springs for an 02 YZ250 and maybe one more from my 08 YZ250. They'll all fit, just not sure what the rates are on the YZ springs.

Edited by bg10459

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Okay after some more research and lots of help from bg10459, I've learned that I need an oem yamaha 5UN-22212-40 (which is the one with the blue marking). Anyone have one of these or an aftermarket 5.2 kg spring they're willing to sell?

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You need 5UN-22212-90-00 with a purple dot.  That's the stock spring from a WR450 and is a 5.2 rate.   I'm still looking for it.......

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