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 | 4300RPM High Speed Motor,15 Mosfet Controller,Power Display Throttle, Electric Scooter 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 peak power

📊33A 15-Mosfet controller

🔋48V high-voltage system

€ 471.84

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Description

⚡ Unleash the power of speed and control—ride smarter, ride faster!

VERSATILE DIY UPGRADE - Complete kit including motor, controller, and throttle—perfect for electric scooters, motorcycles, go-karts, and more.
PRECISION SPEED CONTROL - 33A 15-Mosfet controller with 3-speed modes and reverse function puts you in full command of your ride.
POWER THROUGH ANY TERRAIN - 2000W brushless motor delivers high torque and smooth acceleration for conquering hills and rough paths.
DURABLE EFFICIENT DESIGN - Aluminum body with full copper coil and natural air cooling ensures long-lasting, low-noise operation.
REAL TIME PERFORMANCE FEEDBACK - Integrated LCD throttle with power indicator and ignition lock keeps you informed and secure on the go.

The Kunray Electric Brushless DC Motor Kit features a robust 48V 2000W brushless motor paired with a 33A 15-Mosfet controller and an LCD throttle for precise speed management. Designed with an aluminum body and full copper coil, it offers efficient heat dissipation and quiet operation. Ideal for upgrading electric scooters, motorcycles, and DIY projects, this kit delivers high performance and reliability for the modern rider.

Specifications

ASIN	B07G2LZHD8
Best Sellers Rank	#48,526 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 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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€ 471.84

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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