Pay in 4 interest-free payments of $43.62 Learn more
Ships within 48 hours · Estimated delivery Nov 4 - Nov 9
you need more air to flow to the head
Map 3 selection options
Length: 50cm
Pair this kit with a fresh NCY or OEM belt to maximize gains
this will fit most GY6 engines as there are some variations
DHM 2022+ Grom / Monkey 149cc Big Bore Kit Malossi you need more air toThe 2022+ Grom and Monkey run great from the factory until you start chasing more. The DHM 149cc Big Bore Kit is the cleanest way to add real, usable power to your Gen 2 without splitting the cases. Ditch the stock 123. 9cc setup, drop in a bigger bore, and feel the difference everywhere the tach lives stronger roll on, harder pull out of corners, and more grunt to carry that extra weight when you've got a passenger or a loaded frame slider setup.
