How fast will it go mph

Dear Friend, 1.The load speed is according to your wheel size , chainwhell teeth,and driver and scooter weight. 2.but I can tell you the speed how to Calculate: speed = bike wheel perimeter*RPM ( your chainwheel teeth /our motor 11teeth)*60/1000 3.our motor rpm is 4300rpm and use 11teeth sprocket. ex: IF YOU USE 64Teeth plate. so Gear Rato is : 64/11=5.8. so, rpm is4300/5.8= 740RPM. if you use for 8inch wheel. so the speed is : 0.2m(is wheel perimeter）*780*60/1000=28km/h about .

This motor should be used only with lithium batteries? It does not work as lead, I have a brush motor scooter and it has lead batteries so the questio

I see no reason why this would not work with lead-acid batteries. I used it with a 48 volt, 1,000 watt power supply.

?Need to reverse the polarity to run the motor in reverse. I’ve switched a combination of two terminals, but still not getting the desired effect.

You need to switch the yellow, blue and green cables. These are the cables that control the motor direction. It is actually trial and error. This is the same as the front wheel motors.

i bought a lithium ion battery with the xt60 connectors but this motor kit has rings. what do i do to change it?

Take out the fuse splice the wire to the type you want and Walla

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Electric Brushless DC Motor Complete Kit, 48V 2000W 4300RPM High Speed Motor, with 33A 15 Mosfet Controller, Power Display LCD Throttle, Electric Scooter Bicycle Motorcycle Mid Drive Motor, DIY Part

Product ID: 72466996

Details

Brand
Kunray
Horsepower
2000 Watts
Model Name
Motor：BY1020
Speed
4300 RPM
Voltage
48 Volts

⚡2000W max power

🔋48V high-voltage system

⏱️4300 RPM top speed

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Description

⚡ Ride the future now — power, precision, and control in one sleek kit!

VERSATILE DIY KIT - Complete mid-drive motor set perfect for scooters, e-bikes, motorcycles, and go-karts.
SMART LCD THROTTLE - Integrated power display and ignition lock for seamless, high-tech control.
DURABLE EFFICIENT - Aluminum body with full copper coil ensures heat resistance and whisper-quiet operation.
POWERHOUSE PERFORMANCE - Unleash 2000W of brushless torque for unstoppable rides.
PRECISION SPEED CONTROL - 33A 15-Mosfet controller with 3-speed modes and reverse for ultimate command.

The Kunray MY1020 Electric Brushless DC Motor Kit delivers a robust 2000W power output at 48V, reaching speeds up to 4300 RPM. Featuring a 33A 15-Mosfet controller with hall sensor, e-brake, and 3-speed modes, it offers precise and reliable control. The kit includes an LCD throttle with power display and ignition lock, housed in a durable aluminum body with full copper coils for heat resistance and low noise. Ideal for DIY enthusiasts upgrading scooters, e-bikes, motorcycles, and more.

Specifications

ASIN	B07G2LZHD8
Best Sellers Rank	#31,945 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Scooter Motors
Brand Name	Kunray
Customer Reviews	4.2 4.2 out of 5 stars (227)
Horsepower	2000 Watts
Included Components	1pcs Motor, 1pcs Controler, 1pair Throttle
Item Weight	6 Kilograms
Manufacturer	Kun ray
Material Type	Aluminum
Model	Motor：BY1020 Controller：BY15WF01-A
Model Name	Controller：BY15WF01-A Motor：BY1020
Part Number	Kunray MY1020
Speed	4300 RPM
UPC	734779299142
Unit Count	1 Count
Voltage	48 Volts
Wattage	2000 watts

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₩600493

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

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TrustScore 4.5 | 7,300+ reviews

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