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Big Bore Kit for 4 Stroke 50cc Engines - Upgrade to 70cc


Installing a big bore is the best way to increase engine performance!
Upgrade from 50cc Engine to a 70cc Engine!

Parts Specs:
Cylinder: 47mm
Pistion diameter:47mm
Ring diameter: 47mm
Pistion pin length: 36.7mm
Pistion pin diameter: 13mm

This kit includes the following
1pcs Cylinder, Piston + Piston Ring Kit, 2pcs Wist pins, Needle Bearing, Gasket set

Fits on 4 Stroke 50cc Engines

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