Golden motor question

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slbaker
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Golden motor question

I build my e-bike using a GM 36V 500W hub motor which I over-voltaged to 48V
using the GM 48V regen controller. At the time that I purchased the motor
GM did not offer a 48V motor, but I recently noticed that they have added
a 48V 1000W hub motor to their lineup. Overall, I'm happy with the bike,
but a little more power would be nice. Does anyone have any info about
the GM 48V 1000W motor?

Thanks,
Scott

my bike

my bike

my bike

my bike

my bike

my bike

my bike

chas_stevenson
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Re: Golden motor question

Scott,

I don't know about these motors, but the real question is "Are you changing controllers when you get the 48-volt motor?"

The reason for this question is the controller is what regulates the power to the motor, not the rating of the motor. If your 500-watt motor is doing well then replacing it and using the same controller will gain almost nothing. In other words you will not notice the difference. As a matter of fact the 1000-watt motor will want more power when cruising than the 500-watt motor which will decrease your overall range.

If the current controller is putting out a maximum of 21-amps at 48-volts you are already pushing 1008-watts to your current motor. If you replace the motor you will still only be pushing 1008-watts to the motor and you will probably not feel any difference in the 2 motors.

Hope this helps,
Grandpa Chas S.

fdion
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Re: Golden motor question

I build my e-bike using a GM 36V 500W hub motor which I over-voltaged to 48V
using the GM 48V regen controller. At the time that I purchased the motor
GM did not offer a 48V motor, but I recently noticed that they have added
a 48V 1000W hub motor to their lineup. Overall, I'm happy with the bike,
but a little more power would be nice. Does anyone have any info about
the GM 48V 1000W motor?

Scott, how fast does your bike go on 36v and on 48v? I'm thinking that maybe the 48v motor will give you more torque but potentially less speed. Do they have V vs rpm diagrams published for their motors?

It would be great if there was a thread on VFV that would give a recap of the various hub motors currently available with rpm vs voltage.

fdion
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Joined: Wednesday, January 14, 2009 - 13:34
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Re: Golden motor question

I build my e-bike using a GM 36V 500W hub motor which I over-voltaged to 48V
using the GM 48V regen controller. At the time that I purchased the motor
GM did not offer a 48V motor, but I recently noticed that they have added
a 48V 1000W hub motor to their lineup.

To complicate things further, they also have a 750w 36v motor. Pricing seems really good, sounds like a good choice.

icecube57
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Re: Golden motor question

There is no physical difference between the actual motor itself. They just change the controllers. I actually have the 1000w Golden motor and it came with a 48v 30A controller. It peaks at 1800-1900w so let that be some word for thought.

ooo
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Re: Golden motor question

hi,

im on a project to control a brushless dc hub motor using pic(similar to a wheelchair project)...im looking for a circuit to control this motor.....if theres any idea it will be very helpfull.....
this a golden motor model
Model:12"motor wheel
Voltage:36V(brushless)
Power:250W
Weight:4.8Kgs

pls any information will help....

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