Grom'14-19 - Koso 170cc Big Bore Kit

• Unleash all the power your Grom can handle with the Koso 170cc big bore kit
• Ceramic coated aluminum cylinder
• 61mm bore, 11.5:1 compression forged piston/rings (premium fuel required)
• Top end gasket kit and banjo bolts

 NOTE: Not for sale in California.  Race use only in California. 

• Brand: Koso

•   This warning is being provided to comply with the State of California's Proposition 65.
  Cancer and Reproductive Harm - www.p65warnings.ca.gov