Revzilla Koso 150CC Big Bore Kit Honda Grom / Monkey 2022-2026

Koso 150CC Big Bore Kit Honda Grom / Monkey

There's no replacement for displacement! Hop up your Grom with this 150CC Big Bore Kit from Koso! This kit will boost the size of your motor by 17% and increase your compression ratio from 10:1 to 11.38:1 providing a noticeable boost in power, especially when paired with a Koso Camshaft and premium fuel!

Features:

• Cylinder displacement: 150 cc
• Cylinder material: Aluminum / Black powder coated
• Piston size: 54 mm
• Piston type: Forged
• Compression ratio: 11.38:1
• Kit includes: piston ring, piston, pin, gasket kit and cylinder

WARNING: California's Proposition 65 - www.P65Warnings.ca.gov