Have an 02 klr650 that done 2 lefthand main bearings in 4000km.the bearings are not replacable so u have to fit a new crank.the bearing outer is part of the crankcase so if it is damaged the casings have to be replaced.didn't even make the start of a planned morroco trip.loved the bike when it was going but wouldn't dream of taking one RTW,ive ridden xt660z and its in a different league although stupidly way overpriced by yamaha
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