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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.

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Old 10-28-2013, 09:19 PM
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JP4 JP4 is offline
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Location: Ontario, Canada
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Default Wrist Pin Bearing 250/300

If you're replacing a top-end on a 250/300, the Vertex replacement kits do not include the wrist pin bearing - not sure about Woosner? Seems whacked to me that a top-end kit does not include this bearing?

The bearing measures 18 x 22 x 22mm - caged needle bearing.

You can buy them here for cheap:


North Tahoe Motorsports does it right and sells you everything you need in their kit:


Dealt with both vendors before, and both are first-rate.

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