VEVOR 1800W Electric Brushless DC Motor Kit - 48V 4500rpm Motor with Upgraded Speed Controller and Throttle Grip Kit for Go Karts E-Bike Motorcycle Scooter DIY

The media could not be loaded. Amazing kit for the price! I put it in my e bike build and it works so good! It fit right in with no problems all I had to do is drill new holes in the plate. It has pretty good torque but not too much. This is amazing for what comes in the kit. Would 100% buy again

Used this for a go-kart project and it's a great little motor for the job. Driving around for 10 minutes barely gets the motor warm, so it's got plenty of power for a go kart (can get my kart up to 25mph at top speed). It has good low end torque for a fast take-off, and even with an extra hundred pounds (my kid in the passenger seat) the motor barely noticed a difference and still had pretty much the same power. My setup is a 6:1 gear ratio (60 teeth on the wheel sprocket, 10 teeth on the motor sprocket).Connections were easy to make, and like others have said, the "electric lock" connector is what you should use to wire up an on/off switch. Reverse works well, but be aware that it does not go full speed just in reverse.If you are like me and needed to switch the direction of the motor (without using reverse), here are the instructions I found (from leafmotor blog) that worked for this motor/controller setup:For the 3 larger wires coming from the motor, you will want to wire them to the controller like this:Motor ——– ControllerThick yellow wire ——- Thick green wireThick green wire ——- Thick yellow wireThick blue wire ——– Thick blue wireFor the 5 smaller wires coming from the motor (hall effect sensor) you will want to wire them like this:Motor hall ——– Controller hallThin yellow wire ——– Thin yellow wireThin green wire ——– Thin blue wireThin blue wire ——– Thin green wireThin red wire ——– Thin red wireThin black wire ——– Thin black wireFor the hall effect wires, it's pretty easy to use a tiny flathead screwdriver and pop the connectors out of the harness and swap the blue and green wires.

I received the motor and controller and the wiring was labeled. The only wiring problem was with other suppliers. The 3 speed twist throttle with a volt meter was the hardest. I put a brake/taillight with a brake on the handlebar, a key switch, and a 48v 35ah lithium battery. I installed it on a Rhoades Car. The buggy weighs 200# with the motor, battery, and case. I weigh 185# dressed and my wife is about 130#.When I wired and tested the motor, in third, it did not run smoothly. In first it was fine, in second it was OK, but in third it chattered. I contacted the seller and never received a reply. After installing it on the buggy, I found that when starting out with just me onboard the motor chatters in grass. On a smooth, level surface, it is better. With both of us, we have to get started with the pedals and then the motor kicks in. It could be too much weight for the little motor to start it. Once going, it is smooth and propels 525# down the road. It will hit at least 20 mph but the cycle car is not built to go that swiftly. About 8-9mph is just right. The motor does get hot to the touch after 5 miles.I have been trying to get information from the seller but no reply. My rating would may have been higher it the seller would respond. I want to know if it will damage the motor when it chatters.

Updated 5/29/2020Talked to the manufacture who offered a reasonable solution to my issues with the 2nd kit; as such, due to customer service I'm increasing my overall rating to 4 stars.I have purchased a third motor kit and will be updating my review once it arrives and is installed.Update 5/26/2020My original purchase went so well and installed so easily that I ordered a second unit for my daughters MX500.Now I understand the challenges that some of the reviewers are experiencing.Controller:1st Order - all the wires were labeled, making the wiring very straight forward2nd Order - none of the wires were labeled and the colors of the wires were slightly different than my first orderMotor:1st Order- I was able to mount the motor will minimal modifications (cut-off the foot and sunk the screws that hit the frame)- Received mounting hardware that I didn't use but would have been handy in a different situation- Very simple modifications2nd Order- Foot was mounted incorrectly and I had to remove the entire thing just to clear the frame (much more work)- The mounting screw holes were also slightly off requiring further modification.- No mounting hardware was includedBoth kits had the same performance and I was able to make both kits work correctly.Manufacturer seems to have some quality control issues and it is the luck of the draw which version of the kit you will receive.I would still order the kit, but make sure you have some level of knowledge to make it work for your application.Original ReviewPurchased the Mophorn 1800W brushless motor kit as an upgrade for my sons MX650. The largest challenge was figuring out where to place the controller that wouldn't get in the way of the bikes operations. If you upgrade to lithium or lipo batteries this would help to eliminate the issue as the batteries would take up less space.Everything is very close to plug in play with the exception of the motor. You need to remove the motor mounting bracket which is easy as it is soft metal and you need to recess two of the screws that interfere with the frame of the bike when mounting. I simply removed the two screws on the motor (one at a time), and used a drill bit slightly larger than the screw head to create a recessed hole on the motor. It worked perfectly and there was no effect on the motor.There is limited instructions regarding wiring, but both the motor and throttle are very easy to figure out especially with the included wiring harnesses.The controller includes many additional connections that we choose not to use as they are not required. The only required connections are the those to the motor, the throttle, and a set of wires labeled door lock that must be either shorted or connected to a on/off switch.The increase in performance is very obvious and brought smiles to our faces. The throttle is a bit touchy and takes some getting used to as there is an increase in torque. I can ride the bike with my 220 lb frame and motor does not get hot.I measured bike speeds as we progressed on flat pavement.Completely stock = 17 mph48 volt upgrade only = 23 mphMophorn 1800w kit = 27 mphTotal time required from a stock MX650 to driving with the Mophorn kit was approximately 3 hours. I have ordered another kit for my daughters MX500 and expect I can have it installed in 90 minutes.