Description
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. Please see our Warranty & Returns Policy.
Bore: 58.5mm
Outer Sleeve Diameter: 60.3mm
Displacement Increase to 155cc
Overall Height (cylinder): 91.5mm
Stud Spacing: 76.5mm
SUPPORTED MODELS: GY6 QMI/QMJ 152/157, Various unlisted makes/models