At DMG Motorsports, we present the KOSO 150cc Big Bore Kit for Honda applications — a performance-focused engine upgrade designed to increase displacement while supporting the reliability of the stock motor. This kit combines a ceramic-coated cylinder with a 61mm forged piston and the essential installation hardware needed for a thorough upgrade.

Features:

• 150cc big bore kit for Honda applications
• Ceramic-coated cylinder
• 61mm forged piston
• Includes piston rings, piston pin and pin clips
• Gasket kit included
• Banjo bolts included
• 11.5:1 compression ratio
• Designed for use with premium pump gas

Fitment