No products
RACE PISTON: New 125cc Dome Race piston for the Honda Grom. Shorter reach plug is included due to high compression piston. Honda Grom stock compression: 9.3:1 FinBro 125 Dome Race Piston: 12.1
STREET PISTON: New 125cc Flat Top piston for the Honda Grom. Honda Grom stock compression: 9.3:1 FinBro 125 Flat Top Street Piston: 10:5