The air-cooled engine uses low-friction technology, including an offset cylinder and a roller rocker arm for the valve gear.
ENGINE & DRIVETRAIN
Low-friction engine
The air-cooled engine uses low-friction technology, including an offset cylinder and a roller rocker arm for the valve gear.
Excellent throttle response
Programmed Fuel Injection (PGM-FI) provides excellent throttle response over a wide range of riding conditions by continuously monitoring several variables to help ensure the correct fuel mixture at all times.
Five-speed transmission
An extra gear in the transmission — now five-speed instead of four-speed — helps you keep the Grom in the meat of its powerband, while also increasing top speed for more relaxed top-gear cruising.