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Electric Scooter Motor Kit 48V 2000W DC Brushless Controller 45A,Throttle | Mid Drive Motor,LCD Display Twist Throttle Grip, 3-Speed Switch,for Go Kart ATV Electric Scooter Conversion Upgrade Motor Kit

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Availability: In Stock.
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Arrives Aug 14 – Sep 8
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Size: 48V 2000W


Style: High Current Controller Kit


Features

  • Electric Scooter Motor: Voltage 48 Volt DC, Power 2000 Watt, Rate Current 42A, Rate Speed 4300 rpm/min, Max Speed 5600rpm/min (no-load), Torque 6.9N.m.
  • Brushless Controller: 48 Volt, 2000 Watt, 45 Amp, 24 Mosfet, 120 Phase Degree, Low-level brake, 3 Speed, Reverse, Hard Boot, Head Light, Charge Port and E-lock.
  • LCD Handlebar Twist: 48V LCD Handlebar Throttle Twist, with power display, ignition lock and throttle, with high quality rubber grip for more comfort.
  • Electric Brushless DC Motor, Aluminum Body, Full Copper Coil, Heat Resistant, Naturally Air Cooled, Low Noise High Quality More Long Life; Application for Electric Scooter, Electric Motorcycle DIY Engine Kit,Go Karts, Razor Push Scooter, etc.
  • Packing List: 48V 2000W motor, 45A 2000W brushless controller , LCD throttle, 3-speed switch.

Description

Brushless DC motor with low noise, smooth operation, long service life and low maintenance cost. Step 1: 3 thick yellow, green and blue wires (phase wires) : Controller to the motor - yellow to yellow, blue to green, green to blue; Step 2: 6 Hall Wires: Controller to the motor - blue to yellow, other unchanged. 2000 watt rated power, 4300rpm/min rated speed, max speed is about 5600rpm/min. High-speed operation, and has 214 cooling holes for fast heat dissipation. All aluminum body, comes with two mounting brackets for more models, with 8/10 mm axle and the bolts used are M6. The sprocket is T8F 11T, and the matching chain is also T8F; 25H chain can also be used, but the sprocket must be replaced with 25H. All copper movement, High quality motor with long service life. Kunray's 48V 2000W brushless motor has a rated speed of 4300rpm/min and the maximum speed is 5600rpm/min under no-load condition. About after-sales service PHASE WIRE: yellow to yellow, blue to green, green to blue HALL WIRE: red - red, black - black, green - green, yellow - blue, blue - yellow Our BLDC motor is Aluminum and brushless , this type motor heat up is normal,temperature under 100°. is normal, if more than,STOP USE. and check wire connect ifcorrect. and contact with us for help. In our listing we write the speed is motor RPM ,and it is max RPM, IS NOT LOADSPEED.(km/h is according many conditions). motor controller 3-speed: LOW SPEED 50%,MID SPEED: 75%,HIGH SPEED: 100%.REVERSE: 50% Kunray Intelligent Tech Company is research, produce and sales of high-end electronic motor,controller,accessories for go kart and more About Kunray Brand Kunray Intelligent Tech Co., Ltd. is committed to independent research, development, production and sales of high-end electronic controller accessories such as electric scooters, go karts, electric motorcycle, etc. Please Note: Kunray Motor are Designed for off-road use only. Please Make Sure to check your local laws before riding. Kunray is not liable for any consequences due to unlawful use. Designed for off-road use, it cannot be driven on roads. You must abide by the local traffic regulations in your area!, Please check and Comply your local laws. Kunray company specialized in the research and development, production,and sales of electric travel products. Since its inception in 2010, the company has adhered to the concept of "technological innovation and quality-based" we developing electric skateboards, go-karts, electric motorcycles, and other products. In addition, it has gained widespread recognition In addition to sales, we can also undertake OEM orders, provide personalized solutions for different customers, and provide one-stop services. Visit the Store

Brand: Kunray


Model Name: Motor:BY1020 Controller:Model MOS24 Input DC 48-72V 40A Rated power 2000-2200W (max 50A max 3000W) See more


Speed: 5600 RPM


Voltage: 48 Volts


Horsepower: 2000 Watts


Brand Name: Kunray


Model Name: Motor:BY1020 Controller:Model MOS24 Input DC 48-72V 40A Rated power 2000-2200W (max 50A max 3000W)


Model: Motor:BY1020 Controller:MOS24


Manufacturer: Kunray


Part Number: 18-7NDP-DDS9


Unit Count: 1 Count


Speed: 5600 RPM


Voltage: 48 Volts


Horsepower: 2000 Watts


Item Weight: 14.76 Pounds


Material Type: Aluminum


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 14 – Sep 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Good motor and controller
Size: 48V 2000W Style: High Current Controller Kit
Well built on motor/controller. I was having issue but it was my fault. I have figured it out and everything is working correctly. But if you need any support. There is no phone number to call. Contact Kunray via Amazon messaging only and is useless. 6/28/2020 . Top out 41mph on a go kart. Love the sound of this motor. Total weight is about 300bls with driver. PS. A note for those people complaints about the motor/controller. The motor in default is only run on Medium speed @ 80% power. In order to run the motor at 100% full power. You will need to have a speed controller install ( cost $10 on ebay) 1= low @60% power 2= Medium 80% power 3= high 100% power. The motor in default is a soft start controller. To get hard start, you must connect the 2 whites wires together to activate hard start. As of 8/20/21 the kit is still running strong running on maximum voltage of 57 -58 volts battery from the 48v battery source. Most 48v battery fully charged is 54 volts. ... show more
Reviewed in the United States on March 23, 2020 by Bruce

  • Razor EcoSmart Metro Scooter
Size: 48V 2000W Style: High Current Controller Kit
I bought a razor ecosmart metro scooter and upgraded it to 48 volts getting it up to 21mph but over 400 miles I burned out the original motor due to my weight and the extra voltage. So I bought this motor and controller kit for it. I had to drill new holes to mount the motor and install an extra box to house the controller and one of the four 15 Amp hour batteries I bought. You also had to reverse the rotation of the motor by swapping the thick blue and green wires and swapping the tiny blue and yellow wires going to the motor cable. After all that it goes about 16 mph in low, 23mph in medium and 32 mph in high speed. The whole system works great and I'm very glad I purchased it and would recommend it to anyone looking to get extra speed and power out of their scooter. ... show more
Reviewed in the United States on January 2, 2021 by Amazon Customer

  • Holy controller size!
Size: 48V 2000W Style: High Current Controller Kit
The controller was too massive, but the throttle and motor seemed good quality.
Reviewed in the United States on April 5, 2026 by Rob H.

  • Very helpful support
Size: 48V 2000W Style: High Current Controller Kit
I had an issue with the motor, it seemed to stop working. I contacted them and they responded quickly and helped me out. They sent me a complete new kit at no cost. Great customer service. Will buy again.
Reviewed in the United States on September 11, 2021 by eric

  • Horrendous throttle response
Size: 48V 2000W Style: High Current Controller Kit
Installed onto stock mx650 for some reason got the HUGE Controller that’s was difficult mounting. After shaving the motor screws and mount it fit nice got everything working and went for a ride and my only real complaint is throttle response. Came back home and found the 2 wires that had to be connected to help but The response is still horrendous if you go to full throttle the curve is so consistently poor solid 1 second delay before “full throttle” so wheelies are impossible ... show more
Reviewed in the United States on May 26, 2026 by Corey Leighty

  • Not worth the price, get a better controller and throttle and find a better motor.
Size: 48V 2000W Style: High Current Controller Kit
I bought this kit to upgrade my son's electric dirt bike, an SSR SRZ800. I have learned several valuable lessons from this purchase. 1) the controller is huge for a 45 amp unit, it is absolutely monsterous and was going to be really challenging to fit my application. 2) the controller is soft-start, which doesn't work for a fun dirt bike. 3) the controller is not programmable in any way. 4) The motor is horrible quality, unbalanced, and doesn't go to max rpm. This kit would earn a much better rating from me if there was an ability to program the controller and adjust parameters like direction, soft-start, peak amps, and speeds. So essentially the controller isn't a great value. Now the motor: The motor vibrated a lot and wouldn't run correctly. I tried a better Kelly Controller and it would run up, shut off, and run up again with a hall sensor error. The motor was trying to vibrate off my bench. I took it apart and it was horribly unbalanced. All of these MY1020 motors are made to a price point, but the one I got was garbage. You are much better off sourcing a motor directly and then buying a Kelly or other programmable controller and the throttle separately, it will be cheaper and better. ... show more
Reviewed in the United States on May 26, 2020 by chris

  • Lots of power
Size: 48V 2000W Style: High Current Controller Kit
Great product I have 2 and they work great
Reviewed in the United States on September 5, 2025 by Rocky Cooke

  • No junction box included phase connection. update to 5 stars regardless
Size: 48V 2000W Style: High Current Controller Kit
Have not used yet . Instructions has phase connector and junction box. Instructional Video also has junction box (5) also. Nothing was included so I had to order from elsewhere cost me another 10 bucks. Update: for those of u whole need to reverse the motor rotation its not bad From the esc hall connector : Splice and connect blue to yellow and yellow to blue. These are 18 gauge thin wires. Picture included From the motor big azz cables yellow to yellow, blue to green Final Update: The phase wires were REALLY hot but this was my own fault as I connected with nut and bolkt. make sure to have a very good connection or you will have resistance =HEAT. At the end I spliced them together with a wire nut which removed the issue. I was worried that the phase wires from the motor were much larger gauge but turned out to be User Error . Motor: I hooked this up on a monster motoE1000 with a 48v 20 AH LifeP04 Battery ( This thing absolutely rips! Im 6ft 235 and I top out around 28 MPH on grass. I rode this next to a Juiced Bike with MPH gauge against my son (125 lb) and we were neck and neck. So far so good, no heat issues, battery is till running strong, seems solid so far. enjoy! ... show more
Reviewed in the United States on May 4, 2020 by Mad man

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