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 Kit,48V 2000W Motor,33A Controller,LCD Throttle

Electric Brushless DC Motor Kit,48V 2000W Motor,33A Controller,LCD Throttle

Product ID: 72466996

Details

Brand
Kunray
Horsepower
2000 watts
Model Name
Motor：BY1020
Speed
4300 rpm
Voltage
48 volts

⚡2000W peak power

📊33A 15-Mosfet controller

🔋48V high-voltage system

¥81410

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Unleash the power of precision—ride smarter, faster, cooler!

ADVANCED SAFETY FEATURES - Equipped with Hall sensor, e-brake, reverse function, and power lock for secure and responsive control.
DURABLE EFFICIENT BUILD - Aluminum body with full copper coil ensures longevity and energy efficiency on every ride.
POWER THROUGH EVERY TERRAIN - 4300 RPM brushless motor delivers smooth, high-speed performance with low noise and heat resistance.
VERSATILE DIY POWER UPGRADE - Complete kit perfect for electric scooters, motorcycles, go-karts, and e-tricycles—upgrade your ride with confidence.
SMART CONTROL AT YOUR FINGERTIPS - Integrated LCD throttle with power indicator, ignition lock, and 3-speed modes for ultimate ride customization.

The Kunray Electric Brushless DC Motor Kit features a robust 48V 2000W brushless motor capable of 4300 RPM, paired with a 33A 15-Mosfet controller and an LCD throttle with multi-function controls. Designed with an aluminum body and full copper coil, it offers heat resistance, low noise, and efficient energy use. Ideal for electric scooters, motorcycles, and DIY projects, this kit combines power, durability, and smart control for a next-level riding experience.

Specifications

ASIN	B07G2LZHD8
Best Sellers Rank	#45,363 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 (233)
Horsepower	2000 watts
Included Components	1pcs Motor, 1pcs Controler, 1pair Throttle
Item Weight	6 kg
Manufacturer	Kun ray
Material Type	Aluminum
Model	Motor：BY1020 Controller：BY15WF01-A
Model Name	Controller：BY15WF01-A Motor：BY1020
Number of Items	3
Part Number	Kunray MY1020
Speed	4300 rpm
UPC	734779299142
Unit Count	1 Count
Voltage	48 volts
Wattage	2000 watts

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