Crank rebuild 2001 WR426

I currently have a modded wr250r, which does great but I would also like a wr400/426/450 for the dirt. I found a clean 2001 426 that has a bad crank.

I always buy the wiesco bottom end kits that comes with a new crank.

I cant seem to find a bottom end kit for these bikes, does the crank have to be split and rebuilt with new bearings?

why does no one offer a bottom end kit??

I found the same thing when looking for cranks for my YZ426. I'm not sure why, maybe because they weren't made for very long?

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