I guess I was eye balling the Viper 13.5 because it's rated at 2,400kv so it has the torque of a 17.5 but I can gear it higher to get more speed out of it if I want. Correct me if I'm wrong but I read lower kv motors take better to high gearing than higher kv motors, is there any truth to that? Could be that Viper should have labeled the motor as a 17.5t if they state it to be a 2,400kv motor