*Does not fit 2022+ models

Our 240 degrees performance camshaft will give you great results at high RPM. This camshaft can be used with a stock engine, but will even give better results with the Koso 170cc big bore kit. Made from quality material for longer durability, the Koso GROM camshaft is a clever choice.

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

• Duration at 1mm In: 260 Ex: 265
• Valve lift In: 8.5mm Ex: 8.5mm
• Running clearance In: 0.10mm Ex: 0.17mm
• fits Honda GROM® and Monkey®

Instructions