Review on Keenso 36V Scooter Controller and Throttle Combo, High-performance 1000W Controller and Throttle Set for Electric Scooter, E-Bike, Bicycle, Tricycle by Jimmy Bhat

So far so good, I've tested it and amazingly it's held up for about a week now. I would give it 5 stars except I'm not sure about the lifespan of the speed controller. It's easy enough, requires no instructions if you know what you're looking at. I replaced my stock Mx650 speed controller and throttle with this and it went from 17mph to 20mph with a 140lb driver and a 12ah 40v pack. The controller isn't too big like most of the add-on options. However, it should be noted that there is a "Sport" mode setting which I thought would be active after closing the circuit or touching two sport wires, but I was wrong. Sport mode is active when the circuit is open or when the two wires are not touching. I wanted to return the controller but I had the idea to remove the jumper I made and it brought the bike back to life. It's definitely not going to win races anytime soon, but it's certainly a nice improvement over the 36V 650W controller it replaced. A definite downside I might add is that the LCDs stay on even when the key is in the off position. I'm sure I can remount the display, but it really should be more convenient since it comes with the box. At the moment I have a main switch located in front of the controller which is also protected by a fuse to protect my investment. Much luck!