How much would 6 12v 7ah batteries last me when riding?

Assuming you intend to put them all in series to make a 72v nominal bank, the total of 6 batteries at 7ah is 7 amp hours. So if this controller realisticly pulls 50 amps as rated, 7 divided by 50 is 0.14. 0.14 times 60 minutes in an hour means about 8.5 minutes run time at full throttle till bank depletion. Of course, if you are using half throttle at half the amp draw, you get twice the time. See?

Can i safely use a 20s lipo battery 4000mah and 25C for the 72v?

Yes . I have used similar set up and worked fine . This motor can also be overvolted but that will lower its total lifespan.

I want to buy this motor to put in a dyi drift trike, do you think it would have enough torque for that?

Motor is capable of producing 5Nm of torque. Golf cart motors are around the 7-12Nm range. Higher gear ratios give more torque but less top speed.

Will this motor run full-speed in both forward and reverse?

The motor will run at 100% speed forwards and 50% speed in reverse.

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BLDC 72V 3000W Brushless Motor Kit with 50A Controller, Throttle, Pedal | Kunray 24 Mosfet BLDC Controller,Foot Pedal Throttle,Motor Kit for Electric Scooter Engine Motorcycle DIY Part Conversion Kit

Product ID: 98403525

Details

Brand
Kunray
Horsepower
3000 watts
Model Name
Electric DC
Speed
5800 rpm
Voltage
72 volts

⚡3000W peak power

🌀5800 RPM max speed

🔋72V high-voltage system

R12517

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Description

⚡ Power Your Ride, Own the Streets!

UNLEASH 3000 W OF PURE POWER - Dominate your ride with a high-torque brushless motor built for speed and endurance.
72 V VOLTAGE FOR EXTENDED RANGE - Experience longer rides and faster acceleration with a robust high-voltage setup.
DURABLE ALUMINUM COPPER BUILD - Heat-resistant, air-cooled motor ensures quiet operation and long-lasting performance.
UNIVERSAL COMPATIBILITY DIY READY - Complete kit with throttle and pedal fits scooters, e-bikes, go-karts, and more—perfect for the modern maker.
PRECISION 50 A CONTROLLER WITH 3 SPEED MODES - Smart controller offers smooth throttle response, e-brake, reverse, and power lock for ultimate control.

The BLDC 72V 3000W Brushless Motor Kit by Kunray is a high-performance electric motor system designed for DIY electric scooters, bikes, and go-karts. Featuring a durable aluminum body with full copper coils, it delivers up to 5800 RPM and 3000 watts of peak power. The included 50A smart controller supports 3-speed modes, e-brake, reverse, and power lock functions, ensuring precise and safe control. This kit is engineered for quiet, heat-resistant operation and broad compatibility, making it the ideal upgrade for millennial professionals seeking powerful, reliable, and customizable electric mobility solutions.

Specifications

ASIN	B07KR2FN89
Best Sellers Rank	#152,470 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #23 in Scooter Motors
Brand Name	Kunray
Customer Reviews	4.0 4.0 out of 5 stars (169)
Horsepower	3000 watts
Item Dimensions W x H	5.28"W x 4.41"H
Item Highlight	Kunray 24 Mosfet BLDC Controller,Foot Pedal Throttle,Motor Kit for Electric Scooter Engine Motorcycle DIY Part Conversion Kit
Item Weight	8 kg
Manufacturer	Kunray
Material Type	Aluminum Copper Rubber Acrylonitrile Butadiene Styrene
Model	kunray
Model Name	Electric Brushless DC Motor
Part Number	kunray
Speed	5800 rpm
UPC	734779299371
Unit Count	1 Count
Voltage	72 volts

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R12517

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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