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Kunray

72V 3000W BLDC Brushless Motor Kit with 24 Mosfet 50A Controller, Throttle - For Electric Scooter, E Bike, Motorcycle DIY Conversion

    • Based on 140 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Dec 22
Order within 6 hours and 56 minutes
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Features

  • Kunray MY1020 Brushless Motor Features: Electric Brushless DC Motor, Aluminum Body, Full Copper Coil, Heat Resistant, Naturally Air Cooled, Low Noise High Quality More Long Life.
  • BLDC Scooter Motor: Brushless High Speed Mid Drive Motor, Voltage 72V DC, Rated Power 3000W peak, Current 45A, Rated Speed 4900rpm/min, (Max 5800RPM), T8F 11Teeth Sprocket, Load Weight: About 100-200kg.
  • BLDC Controller: Voltage 48-72V, Proctect 42 volt, Power 3000 watt, 24 mosfet, Current 50 amp, Phase Degree: 120, Smart Controller Can Work With Hall Sensor And Without hall, Brushless Motor Speed Controller, E-Brake, 3-Speed (Low Mid High Speed), Reverse Functions, Indicator Light And Power Lock Functions.
  • Handlebar Twist Throttle: Universal Accelerator Handlebar Throttle Twist Grips, 12V-72V Universal, With 3 Speed (High,Mid and Low Speed) And Reverse Functions, Wire Length About 150cm ( 59 inch) , High Quality Rubber And ABS Material.
  • Useful: Suit For Electric Scooter, Mini Electric Motorcycle DIY Engine Kit, Razor Push Scooter, Ebike Bicycle, Go Karts, E-bike, E-Tricycle,Mid Drive Motor Kit, Complete Set, DIY Engine System, Cycling Part and more.

Brand: Kunray


Model Name: Electric Brushless DC Motor


Speed: 5800 RPM


Voltage: 72 Volts


Horsepower: 3000 Watts


Is Discontinued By Manufacturer ‏ : ‎ No


Item model number ‏ : ‎ kunray


Date First Available ‏ : ‎ November 20, 2018


Manufacturer ‏ : ‎ Kunray


Best Sellers Rank: #208,895 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #38 in Scooter Motors


#38 in Scooter Motors:


Customer Reviews: 4.3 4.3 out of 5 stars 140 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 22

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Similar Products

Top Amazon Reviews

    • It's a good deal good product.
Style: 6 Part in 1 and Motor With Foot
Review Image by Phill Morgan Phill Morgan
The product is completely fine. I got it to convert my bike into an electric bike. I literally just got the mechanics and electronics all to work. I have no idea what the hard boot wires are for because I tried to start it with that in and nothing happened so I just leave it disconnected. For me I needed to mount the motor so the sprocket was on the left side of the bike to take advantage of electronic breaking which the motor controller does not do. I'm taking a three phase rectifier and am going to have some relays in series to connect it back to the battery only when the motor controller is first disconnected but I have yet to test it). However the motor is hardwired to spin forward in the opposite direction for that side.(motor spin direction is important because the motor controller does not allow full speed in the reverse mode) TO CHANGE THE DIRECTION OF SPIN: simply switch any and only two main motor wires with each other but because of the holifex sensor it won't work at all then. Next you need to do the same thing to the leads of the holifex. The holifex has 5 cords. 2 (red and black) are only for power and the other three correspond with the main motor inputs. I switched blue and yellow on the motor but when I did the same on the holifex it still didn't work because they didn't correlate the color of the wire in the holifex with the color wire of the motor it actually sensed so you might have to cut strip and try all combinations till it works. But that's how you hard wire it to go in the other direction. I suggest cutting the wires from the controller and not the motor. Also to people who complained about the Chinese on the handle... Figure it out. It's easy to remember once you try them all and see what they do but if you want others to know too then just take a Sharpe marker and Mark 123 and FR on the switches. Litteraly 1min to do all of that! I'll add some stats when I get a battery with enough power but a 5p 12s battery got me to 15mph+ on flatish road on low setting. Med and high seem to try then stop 1sec later but I think its my bms throttling the controller. Someone said it could get you up to 60mph but let me test it. Wires coming out of the motor controller can be difficult to figure out but remember blue to blue for throttle. Update: I decided I'm going to make a completely new battery entirely so the new battery will be 20p by 20s I'm going to make it in four separate packs each pack will have 20 parallel and five rows in series to give me the maximum amount of nickel to spread out the current. I'm going to use a 50 amp output 20s bms. If you want to make your own regenerative braking on top of the rectifier you'll also need 1500w boost converter with constant voltage control to boost the voltage up to YOUR batteries charging voltage. You can also plug a solar panel into the same boost converter to charge the battery. If you want to charge the battery with a wall outlet I'd suggest looking into server power supplies you can get 1100w for 30 bucks-ish you just need to research ahead of time how to wire the leads to turn it on. To power any low voltage equipment you might want to look into a voltage step down from 72v to 12v. If you need a lower voltage I would suggest getting the step down to 12v and then a 12v to whatever you need (probs 5v) because a lot of DC stuff uses 12v cuz cars. It would also be a good idea to get a battery power output monitor just keep track of the Watts going in and out and battery voltage. If you're going to use this motor it's probably the cheapest one for the wattage but the in wheel Motors are a lot more Compact and take up a lot less space in the frame of the bike that could be used for battery. I just recently learned how to make an in wheel motor and besides not knowing a good source of cheap coated copper wire I think I would probably make my own motor and motor controller. For the average Joe though this is probably your best budget option just don't forget to buy a chain tensioner! Just do it (12 bucks will save a lot of trouble). ... show more
Reviewed in the United States on November 15, 2020 by Phill Morgan Phill Morgan
    • Powerful motor This is not a toy
Style: 6 Part in 1 and Motor With Foot
Review Image by David Hostetler David Hostetler
Review Image by David Hostetler David Hostetler
Review Image by David Hostetler David Hostetler
I installed this on my 4 wheel bike that has 24" Wheels and it goes 30 mph. I have a 40 amp lithium hour battery that has 75volts and I've had it for several years and probably driven 2000 miles. It does get hot when I drive at high speeds for 15 to 20 minutes, but that was with a trailer on my 4 wheel bike that had 2 more riders on it. ... show more
Reviewed in the United States on October 1, 2024 by David Hostetler David Hostetler
    • Easy to install and very powerful
Style: 6 Part in 1 and Motor With Foot
Fits razor mx650 and pairs well with my 72v 20mah wroyeti battery.. I can travel at least 25miles and the motor and controller are powerful and good quality. I haven't had an issue yet.. but if I do I will update
Reviewed in the United States on September 18, 2024 by Works great and good quality wires and connector
    • Extremely powerful in the right hands.... potentially 60+mph yes...miles per hour....
Style: 6 Part in 1 and Motor With Foot
Review Image by DC Domo DC Domo
Review Image by DC Domo DC Domo
This motor is extremely powerful if the builder knows what they are doing. The problem so far... is that the builders who have used this motor say they are disappointed. It is because they were not fully aware of what it could do because of the incorrect install. When set up properly, this motor can produce enough performance for a 300lb rider to reach 55mph on flat road in subpar conditions, on a Razor MX500. If not careful, it is powerful enough to do a wheelie and fling that very same 300lb rider right off the back with 0 issue. Yes .... FLING... A 170lb rider to get to 66 mph (NOT KPH) on a flat road, on a Razor RSF650, in subpar conditions. An SX500 to 58mph, a Pocketmod to 49mph, a quad to 37mph...unstable. Batteries were all 8ah lithium packs. Changed the motor sprocket to match the #25 type and the original #25 chain and rear sprocket were used for these speeds and performance. CONS: The common package to get from this seller seems to be the "cheapest" which will come with "foot." What "foot" means, is the motor stand on the bottom. It DOES NOT mean foot pedal. It just doesnt translate. Having said that, most everything doesn't translate. But its actually very easy to understand or at least figure out. Also, sometimes the wires in the harness are mixed up. So if your motor is running backward or not at all... move the hall sensor wires around. (green, yellow, and blue). The 3 speed switch wires are commonly messed up as well, switch them around as well to find the correct one. You dont have to use all the wires, nor all the connectors. They are not very good at all anyway. Cut them off and get some mr30, xt90, 60 or whatever else that would be better. The seller isnt very good with customer service either, thats why they get 4 stars. In the end... it is worth it. You will just have to ignore the people who say its bad because its in chinese... Set it up right, and you will definately agree. ... show more
Reviewed in the United States on May 9, 2020 by DC Domo DC Domo
    • Great motor for gokart conversion!
Style: 6 Part in 1 and Motor With Foot
I used this kit for a 72v electric gokart conversion. 15in rear tires, 6:1 gear ratio, ~36-38mph. It's got enough torque to get around in a grassy field just fine. Motor gets up to135-140deg F after 45min or so with an outside temp of 95-100 in the summer. Very happy with this purchase!
Reviewed in the United States on August 24, 2024 by Danny B.
    • Motor is prone to failure
Style: 6 Part in 1 and Motor With Foot
I bought the 3000w kit and installed it on a bicycle I got for this project. Drove it around a couple time and it functioned great. The bicycle would get up to 40mph with the gears that cane with the kit. One day I decided to drive from home to town which was a 15 minute drive by car while traveling at 60mph. I got about half way which was about 12 minutes of use when it just quit driving. Found the motor overheated and fried itself. It won't turn anymore than a second before it kicks out again. It may sound like the battery may be dead but it battery was still 70% full. If this system was a at all decent it would easily be able to handle even 30 minutes of use as the description states the motor is internally cooled, indicating there shouldn't be any cooling issues. I missed the return date by a day but got lucky when a amazon costumer service representative completed the return for me anyway. Decided to get another one as replacement and will probably try to see if I can install a fan to help keep the motor from burning up. ... show more
Reviewed in the United States on May 10, 2022 by Nicodemus d.

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