Koso - Big Bore Kit Grom 170cc - MB623002
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Koso
Koso - Big Bore Kit Grom 170cc - MB623002
Koso - Big Bore Kit Grom 170cc - MB623002 - Honda Grom/Monkey Big Bore Kit
Unleash all the power your Honda GROM can handle with the Koso 170cc Big Bore kit.
Unleash all the power your Honda GROM can handle with the Koso 170cc Big Bore kit.
- Ceramic coated aluminum cylinder
- 61mm bore, 11.5:1 compression ratio forged piston/ring kit (premium fuel required)
- Top end gasket kit and banjo bolts
- Not legal for use in California on pollution controlled vehicles, race use only in California - waiver available
