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XR400 Cam Chain Question

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I'm in the process of installing a 426 kit and hotcam. I was advised by Rob Barnum to change the camchain when doing this as a 2000 bike's chain could have stretched enough to affect performance. After surfing a 400ex forum, I've discovered a popular mod on the EX is to change to a CRF450R cam chain. Apparently it is much heavier duty, not to mention it is less than half the price of the XR400 chain. Based on the Service Honda website, the chain for the 400ex and XR400 have the same part number, leading me to believe that this mod could be useful on our bikes as well. Has anyone else heard of this? Any reason not to try it (assuming same number of links on visual comparison)?

Thanks,

Jeff

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Sounds interesting! It would seem that as long as the pitch, width, and length are equal, and there isnt any other interference along the chain path or tensioner, that it would be a good mod.

Robert 😢

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Yea do it!

See if it works, if it does, tell me, so I can do the same when I get my hot cam in my XR4! 😢

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