Customer Reviews

  • 4.7
  • 4.5
  • 4.6
  • 4.7
wb2.0 wb2.0
Great motor but expensive
If you know what you are doing you can install this kit rather easily plus theres plenty of tutorials on youtube for this motor kit ..i ended up putting this motor on a child's minibike this thing flies
Dylan h. Dylan h.
Pretty good
I made a custom mount to put this on a mountain bike. To be honest it's all rigged up and looks trashy, but I'm to blame for that. This is a really beefy motor that'll spin up real fast. However it's doesn't have a lot of torque. If your going to put this on something that propels a human(I assume you would), then your going to need a really low gear ratio to get moving. You'll loose a bit of top speed but this motor is so fast I wouldn't worry about it. I like that it has many optional wires on it for things such as lights, reverse, different speed levels, and more.
Patrick A. Patrick A.
Screaming fast. ??
This motor is a monster. Running it on an mx650 on 4 sla 12v15ah batteries. I weigh 225 and I'm hitting 32mph.
Mason pykonen Mason pykonen
Far more powerful and relativity cheap.
To be honest, I was not expecting this motor to be so powerful. The stock mx 650 can do maybe 18 mph, but with this, I can do almost 30.However, there are some small things to keep in mind. Luckily, alot of people already covered some smaller things, but I still feel this needs to be saidThe controller is verry fat. You are going to need to either find a funky spot to put this in, or extend the case out with a few washers. It's not that hard and makes a verry small diffence.Now this is a big thing. It can go even faster. Out if the box it does ~29 mph. However, there is a 3 speed wire plug that can make it go even faster. Now, I'm too scared to do this because I'm already doing wheelies (sometimes unexpectedly) but all you need to do is jump the black and blue wires on the 3 speed wires. I've heard it can typically do 34 with ease after you have done this.Lastly, the charger. If you want to keep your stock xlr charger on the side of your bike, that's fine, however, you are going to need to either find one on eBay for a 48 volt charger, or make your own. All you need is a regular 48 volt charger and an xlr cable. You are going to need to attach them to each other then you can have a charger. But my xlr cable had the 3 pin and the 2 pin switched so you might have to solder to switch. It's not that bad.Overall, I recommend this to anyone feeling up to the task. It's not that hard (other than having to drill holes in your frame to fit the screws) and it's over all a fun experience. I recommend learning to solder if you want to make the upgrade reliable and last much longer.Also, it's an awesome flex to go to leave your school going the speed limit. I always get funny looks when I'm keeping up with the flow of trafficOh yeah, it can also do wheelies. Have fun with that
It works
I did test the unit and it does spin, no wiring diagram but there are images and tips on YT if you search brushless speed controller. You need to use a jumper or on/off switch on the connector marked "lock" I would also recommend using a 30 amp switch on the + side of the battery connector.
JR Hult JR Hult
Upgrade for Razor MX500 or MX650 (update 5/26/2020 - revised from 5 stars to 3 stars to 4 stars)
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 spe
S. Wilson S. Wilson
Great motor for projects to upgrade Power Wheels, Razer Scooters, etc.
My son is 13 and is interested in making anything/everything electric. He has taught himself so many things based on searching the internet and watching YouTube. He saved his own money to buy this motor so that he could make a traditional Power Wheels F-150 have more power (and surprise the neighbors). Well, this motor was great. He is a tall kid, so it's so it's funny watching this teenager roll around in a Power Wheels meant for a 4 year old. Now he needs to upgrade other parts in order for this to be a functioning vehicle (tires, battery, etc.) The motor is perfect and has everything he needs to make this function. I will post additional updates (and pics/videos) once he upgrades the frame/tires/etc.Thank you! AW and SW
miguel miguel
Nice motor, it came in fast and with all the proper equipment, cant wait to install it to my cart and see what it's got. But so far really good for the price!
Scott M Scott M
Excellent upgrade
Worked well to upgrade the motor on a razor electric dirt bike. Arrived on time and everything worked well. Happy customer!-SM
Japonte Japonte
Awesome engine great value J.A.
5 ?? Product! It is ridiculously powerful.. The only reason I only gave it a 4 is because It should come with a key switch to ensure only an adult rides it. I used it for a razor dirt bike build and it came out great. This thing will pop wheelies on you and I_ 220. It fits right into an MX 650 or a MX 500.Awesome engine great value. I_e bought 2 in the last 3 months and both are working great! J.A.

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