went ahead and got this kit for a rebuild I am doing on a 01 yz250f. Yes, even though it is not listed as fitting... it does. Check the OEM parts fiche if you are unsure. the bearings seem to be of good quality, and of all the bearings Installed in the bottom end (I replaced ALL bottom end w/ hot rods bearings) these ones were the only ones that had a Japanese bearing in it. I think it was the needle bearing, but can't remember. I would like to think the roller bearing was too, but it had no marking on it so there is no way of knowing for sure. As far as fitment and quality, all is good. Heck of a value at nearly half the cost of oem. Wait and see on the durability once I get on the trail again.. but I a not anticipating any problems. great item.
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