Activa 5g have same engine that we have seen on the last model of Activa. This is air cool, 109cc and single cylinder engine. 130mm drum brakes on both ends. Honda combi brakes system available in honda activa 5g. Panny has equped with 10 inch wheels shod and with 100/90 size. It is aa best bike ov activa.very comfortable, handling is great, fantastic mileage, comfortable seat, powerful breaking system. I like it best of honda activa models.