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How do i increase the speed of an electric bike?(Motor in hub) Answered


I know you need to increase the power going into the motor. I don't understand exactly how?
I know that a different battery with higher voltage output should work, but is there any other way?
If so, how and what would I need? I trust that you guys can come up with something.

P.S I am aware of the potential danger of the motor if I increase too much.

Discussions

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AdamC336

2 months ago

Can you tell me how to make my rockrider st 500 go faster, it has a 36v rear hub motor, and the bike came from Decathlon.

IMG_20190817_150202.jpg
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beyond-oil

8 years ago

Usually there is a pair of grey wires coming out of the controller that have a matching plug-socket. If you undo the connection so it is not a loop your bike is likely to go about 50% faster.

Warning: This may make your bike illegal for road use, with potentially serious consequences if there is an accident.

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Jimsayrbeyond-oil

Reply 1 year ago

I have a 1500W motor and a 48V / 11.6ah battery. How can I increase the speed? I have a 790 controller should I get a bigger controller or use your idea of the grey wires ?

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roger.b.long.5

5 years ago

If the bike has a 24V battery remove and place a 36V battery that would increase speed by about 20% and for a 50% increase change the motor to one which supports a higher wattage. Thats what i did with mine which went from 14 mph to 21mph. cool right

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steveastrouk

8 years ago

Check that when you are going "flat out", that the motor terminal voltage is very close to battery volts - that's the fastest you can go, with that motor and that battery. Report the numbers, and we can tell you if there is any scope for improvement.

Steve

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ClaynEvasteveastrouk

Answer 8 years ago

48V battery with a capacity of 10AH to 14AH. rated output is 350w-450w.
(Brushless motor by the way).
Information other than that I cannot provide as i do not have the necessary tools.
I'm guessing ill need to just find that battery with higher output.

Thanks
-Clay

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steveastroukClaynEva

Answer 8 years ago

You MIGHT burn the controller out, but you could try another 6V sealed lead acid.

Steve

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Vyger

8 years ago

Always go downhill with the wind at your back. Then you will pick up speed with no need for alterations.

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Re-design

8 years ago

Increasing the size of the power wires might help just a bit. Sometimes they are slightly undersized.

There may be a limiting resistor in the circuit somewhere but without looking I can't tell you where.

Adding more voltage is the usual way to increase dc motor speed, but you know the downside to that.