MB623002 KOSO Performance 170cc 2V Big Bore Kit - '13-'20 Honda GROM / GROM SF (Liability Waiver Required)

KOSO Performance 170cc 2V Big Bore Kit (MB623002)

Fits '13-'20  Honda GROM / GROM SF    - PREMIUM GAS

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'MUST Use with Premium Gas

Requires a Fuel Controller & A/F Monitor (sold Separately) for Proper fueling.

Its Highly recommended to run a 16t or 17t Front Sprocket with this BBK
To keep the revs in the PowerBand

Includes:
• 170cc ceramic coated cylinder
• Forged piston
• Pin, Rings, Clips
• Banjo Bolts w/ crush washers
• Base gasket
• Head gasket


Requires a Fuel Controller & A/F Monitor (sold Separately) for Proper fueling.


** Kit should be installed by a certified mechanic to ensure proper function. Improper installation could result in catastrophic engine failure.
** Highly Recommended To install Temp. Gauge and A/F Monitor to ensure proper running Temperatures and Add Longevity to the Motor.