Yosepower hub kits.

Nealh

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That's all I used on my Bafang hubs when the bearings showed signs of wear/play.
A pound or two each for the small ones and a couple more quid for the central main bearing and they have been fine now, the replacements have lasted longer then the originals.
 
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Chabuddy G

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Oct 18, 2020
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Hi guys,

I have 100km done on my 36v 350w with 36v 12.5ah battery kit.
Regarding unassisted top speed on the flat, I'm only getting about 30km/h on the LCD which reads 28km/h on gps. It's a 28" wheel and I weigh 90kg, is that similar to what you guys are getting?
I'm nearly sure i changed the limit so don't think it's that.
 
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Nealh

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Hi guys,

I have 100km done on my 36v 350w with 36v 12.5ah battery kit.
Regarding unassisted top speed on the flat, I'm only getting about 30km/h on the LCD which reads 28km/h on gps. It's a 28" wheel and I weigh 90kg, is that similar to what you guys are getting?
I'm nearly sure i changed the limit so don't think it's that.
The new kits use a slower wound hub motor, I believe they are now higher torque 201rpm wound rather then the previous 280/300 rpm wound hubs. At 36v 28 -32kmh is about the top assisted speed so about 17 - 19mph.
Some LCD's have adjustment to 70km/h but this doesn't mean drive's can attain this assist speed, 1 or 2 mph extra might be gained if one used a 20a controller but in general one needs more voltage.
 
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Chabuddy G

Just Joined
Oct 18, 2020
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The new kits use a slower wound hub motor, I believe they are now higher torque 201rpm wound rather then the previous 280/300 rpm wound hubs. At 36v 28 -32kmh is about the top assisted speed so about 17 - 19mph.
Some LCD's have adjustment to 70km/h but this doesn't mean drive's can attain this assist speed, 1 or 2 mph extra might be gained if one used a 20a controller but in general one needs more voltage.
Thanks for the reply. It'll do me for my 16km commute on the canal, 30km/h is plenty along the banks. It feels slow when you get on the open road though.
 

vfr400

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Jun 12, 2011
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Flat road, wheel on the ground.
In that case, speed is pretty meaningless. The motor has it's own speed, which is dependent on voltage. It will spin 33% faster when the battery is fully charged compared with when the battery is nearly empty. It makes it's max power at about 75% of it's max speed (wheel in the air). In the typical range of 75% to 100% of its max speed, the power ramps down to zero due to the back emf, which opposes or cancels out your battery voltage.

When guys on the forum talk about a motor's max speed, they're normally referring to its no-load max speed. It doesn't matter how many amps you throw at it, you can't change that, neither can you change the speed and power in the range 75% to 100% of the motor's max speed.

The max current allowed by the controller only affects the power in the range where the controller limits the power, which is roughly up to 75% of the motor's max speed. The higher the current the controller allows, the lower the speed at which you can get it.
38862
 
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Leccyboy

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Oct 19, 2020
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Hi guys. Bit of a newbie. Got the yose power 350 rear hub fitted, the one with the controller built into the battery. I’m interested in fitting a kt-lcd8h display but I don’t know if it’s compatible. Any opinions?
 

MontyPAS

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May 16, 2020
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Hi guys. Bit of a newbie. Got the yose power 350 rear hub fitted, the one with the controller built into the battery. I’m interested in fitting a kt-lcd8h display but I don’t know if it’s compatible. Any opinions?
Ive got one of those 350 w kits, I bought the one with an external lishui controller and display. Pretty sure if you want a KT display you will have to change the controller to KT too. I bought the kit with an external controller so would be easy if I ever want to upgrade. You would have to bypass the integral controller built into your battery!
Others may know better, but that's the way I see it
 

Nealh

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If the integrated battery controller is a Lishui then no you can't, KT aren't compatible with Lishui.
 
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Leccyboy

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Ive got one of those 350 w kits, I bought the one with an external lishui controller and display. Pretty sure if you want a KT display you will have to change the controller to KT too. I bought the kit with an external controller so would be easy if I ever want to upgrade. You would have to bypass the integral controller built into your battery!
Others may know better, but that's the way I see it
That’s a shame! Thanks for replying so promptly.
 

Nealh

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If you wanted a different display then yes one would also need to change the controller an option if the controller ever fails, topbikekit sell the integrated KT controller.
 

vfr400

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Many of the integrated controllers are ade by KT. Which display did you get with yours? If it's a KT one, you can change it for any other KT one.