I'm still working on the projects that I'm using these motors for so a 5 star review might be pending but 4 star for now because it's a nice motor and it works fine on the benchtop but haven't had the opertunity to run it on Go karts, scooters, mini bikes or bicycles yet. The only thing that I dont like is the long stiff cord coming off the bottom so I took the motor apart and mounted cord from the side. I still didn't like such a stiff cord so I did away with cord completely and mounted threaded studs and use flexable silicone wire and copper ring terminals instead. The motor still performs well on bechtop.