Start your vehicle quickly and easily with the Roto Start 2. To protect your engine, the Roto Start 2 features a built in circuit breaker which cuts off in case of an overload (e.g. a flooded engine).
For HPI Nitro Star F/G Series Pullstart Engines/Requires a 7.2V rechargeable "stick" battery pack and charger. This HPI Nitro Roto Start 2 system is for the F & G series engines that use a 14mm One-Way Bearing.