Takegawa's E-Stage 143cc Big Bore Kit is one of the most versatile kits on the market. Easy installation, convenient flat top piston runs 11.2:1 compression making it perfect for common premium pump fuel. This kit comes with 56mm grey color cylinder, 56mm piston, rings, pin and clips, as well as the proven N-15 camshaft for the broadest power curve. N-20 peak hp cam is available separate and no longer comes with the kit. Fits 2014 to 2020 Honda Monkey 125, Honda Grom, and Honda CT125 retaining the stock 57.9mm crankshaft.

• Note: to run this bore kit, you will need an aftermarket fuel controller specific to the Monkey 125, Grom, or CT125, such as the Takegawa FI-Con, ARacer etc