The engines are known as Ros-Motor di Rossetti Massimo.

-The Ros 125 “light” gives 29 CV and weighs 10 Kgs.

“Ros, 125 cc”

Marcmotor uses the bases of these engines to offer their range of products. (see).

“Ros 100, light model”

-The Ros-100 is offered as a light engine with electric starting, and its weight goes from 9.7 to 12.3 Kg.

“Ros 100, with electric starter”