🚴 Szzijia 24V 500W Motor Brush Speed Controller: Powerful Upgrade for Electric Bikes, Bicycles & Scooters Review

Works great. I ordered 5 total and each works great. I use them to modify 24v drive wheels and they are great. The only thing is the slow shipping, about 3 weeks to get them.

I bought it in March 2014. When connecting the controller, the label on the controller was lost. I called service and asked for a replacement. They replaced it quickly and efficiently. I've had the new one for 4 months now. It is excellent. It is currently being used on an xtreme 360 24v 500w 65 tooth scooter. Torque and speed are excellent. Thank you Fred from Customer Service for all your help. My kid loves his scooter now. :)

Update 7/4/16 After 2 weeks of use on my EVG e-bike it no longer works. The engine runs constantly and does not respond to turning the throttle on/off. Installed old choke and same thing. As a result, it no longer regulates the power as it should. I have written to them and am waiting for an answer. Delivered safely from China. I used this to replace a broken controller on my EVG 24v e-bike. Power cable, throttle cable, brake sensor cable and brake light cable are connected and everything works

Good product that gets the job done and has a lot of extra features with no info on how and where to use them. Only the block drawing and interfaces are on the side of the block and everything is in Chinese. Selling in the US market requires a good layout of all entries and exits and their placement in English. The seller must show the connection diagram and what and how to connect to it. They don't tell you the information you need to get it right the first time, but they do tell you not to…