155cc Big Bore Kit - 58.5mm Piston/Cylinder GY6
$139.99
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This 155cc kit is the largest that can be used in the GY6 without machining of the cases. Perfect for rebuilding a worn out top end. Bolt-n-Go performance.See our other replacement and big bore kits: Full 150cc Rebuild kit 155cc big bore kit. 175cc big bore kit. 180cc Power Pack (Pre-machined)
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