*Does not fit 2022+ models
Want to unleash all the power your Honda Grom® can handle? Our 170cc Big Bore kit is the perfect addition for you ! The kit includes a ceramic coated cylinder, 61 mm forged piston, rings, pin, gasket kit and banjo bolts. Its compression ratio of 11.5 to 1 will allow you to still use premium pump gas and keep the reliability of a stock motor. Made from the best components available on the market, our 170cc big bore kit will amaze you !
WARNING
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.
Specifications
- Cylinder displacement: 169 cc
- Cylinder material: Aluminum / Ceramic coated
- Piston size: 61 mm
- Piston type: Forged
- Compression ratio: 11.5:1
- Kit includes: piston, rings, pin, pin clips, gasket kit, banjo bolts and cylinder
- fits Grom® and Monkey®
For more important tips and notes, see Honda GROM® FAQ page or download our Honda GROM® Caution PDF.
Instructions
When using 170cc big bore kit only, customer must change or add the following parts:
Instructions
When using 170cc big bore kit only, customer must change or add the following parts:
* M = Mandatory | S= Suggested
