AKM Hub motor

gspeed

Finding my (electric) wheels
Jun 15, 2020
17
2
Has anyone tried AKM hub motors ?

I was considering this one


because it's particulary light

Thanks

Stephen
 

sjpt

Esteemed Pedelecer
Jun 8, 2018
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Winchester
Woosh sells the 85SX, which I'm sure he wouldn't if he hadn't tested it out well.

85SX 2.0kgs 100mm cassette 40NM AIKEMA lightweight rear motor wheels, available in 26" and 700C(28") rims
 
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Jonah

Esteemed Pedelecer
Aug 23, 2010
882
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EX38
Woosh sells the 85SX, which I'm sure he wouldn't if he hadn't tested it out well.

85SX 2.0kgs 100mm cassette 40NM AIKEMA lightweight rear motor wheels, available in 26" and 700C(28") rims
I have this motor and am very pleased with it. Up to 500 miles use over the last 2 months.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,209
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West Sx RH
Has anyone tried AKM hub motors ?

I was considering this one


because it's particulary light

Thanks

Stephen
You can buy it at the site in the link.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
9,822
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Basildon
AKM motors are really good. They're very reliable, smooth and quiet with the right controller, and they pack a fair punch for their size. They're my favourite motor after trying just about every other brand over the last 10 years.
 
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ALW

Finding my (electric) wheels
Jun 5, 2020
7
3
I have the 85SX from Woosh and it's great. Very quiet and smooth.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,209
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West Sx RH
The AKM 128c is quiet as well, my preferred hub motor and is fitted to my 700c touring bike. It can take 25a @36 or 48v for hill climbing.
 

Carl18650

Finding my (electric) wheels
Mar 10, 2024
5
0
Have somebody tested the akm 75sx? Is as good as the others? Haven't found a single review
 

harrys

Esteemed Pedelecer
Dec 1, 2016
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Chicago, USA
I have installed several AKM100H's on 20" hubs with 20x2" tires. One bike has 8000 miles. I don't think I would go any smaller than than 100H for a 26" wheel, and would prefer the larger AKM128,
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
4,412
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Telford
Have somebody tested the akm 75sx? Is as good as the others? Haven't found a single review
I tested one. It was sensorless, so had to be careful with choice of controller. I used a sensorless controller, but it still lost sync with it whenever I opened the the throttle to full. I solved that by experimenting with the settings. I think theyre mainly sensored now, so you shouldn't get that problem. I had it on a road bike and the power was OK, but wouldn't be my choice for a 95kg+ rider with hills.

Make sure you get the right RPM for what you need. 201 rpm is OK up to 15 mph in 26" or 700c wheel. 328rpm is too fast for big wheels, but a good choice for 16" or 20".
 

Carl18650

Finding my (electric) wheels
Mar 10, 2024
5
0
I tested one. It was sensorless, so had to be careful with choice of controller. I used a sensorless controller, but it still lost sync with it whenever I opened the the throttle to full. I solved that by experimenting with the settings. I think theyre mainly sensored now, so you shouldn't get that problem. I had it on a road bike and the power was OK, but wouldn't be my choice for a 95kg+ rider with hills.

Make sure you get the right RPM for what you need. 201 rpm is OK up to 15 mph in 26" or 700c wheel. 328rpm is too fast for big wheels, but a good choice for 16" or 20".
Thanks for the info, I have one with a speed sensor included and I went with the 201 and plan to install it on 700c so its nice to know that is ok, My main concern isn't the motor's performance when it's on, but rather the amount of resistance or drag it creates when it's off and I'm pedaling on my own. Could you share your experiences regarding how this compares to riding a traditional, non-electric road bike? I plan to use the motor only occasionally and will mostly ride with it turned off. Thank you.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,209
8,245
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West Sx RH
Internal motor reduction is high so riding unpowered will be fine.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
4,412
2,166
Telford
Thanks for the info, I have one with a speed sensor included and I went with the 201 and plan to install it on 700c so its nice to know that is ok, My main concern isn't the motor's performance when it's on, but rather the amount of resistance or drag it creates when it's off and I'm pedaling on my own. Could you share your experiences regarding how this compares to riding a traditional, non-electric road bike? I plan to use the motor only occasionally and will mostly ride with it turned off. Thank you.
All the AKM motors have relatively low resistance. All motors can take a few miles before they free-up completely.
 
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