KOSO’s High‑flow oil pump for 2022+Honda Grom / Monkey 125 is strongly recommended for those who upgraded their engine. The addition of this high quality part will increase the oil...
KOSO 28mm Throttle Body (DY640000) for the 2021 and newer Honda GROM & Honda Monkey. As the throttle body and intake manifold are used to control the amount of air...
The new KOSO performance camshaft for Honda Grom 2022+ will give you great results at high RPM. This camshaft can be used with a stock engine, but will even give...
The new KOSO racing air filter cover for 2022+ Grom models is not only easy to install, but it will increase the airflow, improve filtering efficiency and raise the engine...
KOSO BIG BORE KIT 150CC - Honda Grom / Monkey 125 (2022+) with 5 Speed Transmission. Made from the best components available on the market, the 150cc Big Bore kit...