Naraku GY6 58.5mm Big Bore Kit
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Naraku 58.5mm Big Bore Kit for 125cc and 150cc GY6 4-stroke engines and engine based vehicles. Easy to install! Just bolt on with no crankcase modifications needed. Bore: 58.5mm Outer Sleeve Diameter: 60.3mm Displacement Increase to 155cc Overall Height (cylinder): 91.5mm Stud Spacing: 76.5mm GY6 QMI/QMJ 152/157, Various unlisted makes/models This product is not intended for use on public roads or land.
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