Talk about a summertime surprise. Losi just-released Promoto MX has R/C fanatics and motocross fans buzzing. For the first time in a long time, an ultra-realistic, 1/4-scale radio-controlled motocross bike has hit the scene. Blending engineering with scale detail, the Losi Promoto MX not only looks the part of a roost-launching dirt bike, but it […]