Losi Aluminum Swing Arm, Silver: Promoto-MX

Take your Losi Promoto-MX RC motorcycle to the next level by removing its stock injection-molded rear swing arm and installing this optional Promoto-MX aluminum rear swing arm replacement. Made from a solid piece of machined aluminum, the Promoto-MX aluminum swing arm from Losi significantly improves the durability of our Promoto-MX motorcycle — and it looks incredibly real when installed on your RC bike! The increase in strength and resilience ensures that your Losi Promoto-MX RC motorcycle can handle the rigors of intense riding over challenging terrain.