Product Detail Built on the 7-time National Champion RC10T4 platform XP3-SS 2.4 GHz 3-channel radio system w/ SHV1504MG metal gear servo XP SC450-BL Brushless electronic speed control with LiPo cutoff, forward and reverse with reverse lock out Reedy 3300Kv brushless motor 2.6:1 ratio gearbox with sealed gear differential, dual-sided adjustable slipper clutch, and rubber sealed ball bearings . The "RC10T4.1 Off Road Truck RTR,Brushless,2.4GHz Radio" is best product for you. We recommended RC10T4.1 Off Road Truck RTR,Brushless,2.4GHz Radio