Think about buying a Yose power need help guys

[Michael 2025]

@Michael 2025

eBay. Item 256369636190

Here

That's what I've ordered

I'm winging it with some advice from here so I am no expert

That’s what am hoping to do , think this looks better route to take That means could swap the battery from 36v to 48v with this controller ??

 

[Michael 2025]

From experience I prefer the 22a S09S over the S06S , but that is down to my use and my slowish cadence .
Downside is the 9fets are in a larger size box.

See want to keep stealth as possible draw less attention to me self so don’t want big control boxes or huge battery’s

 

[Wayners]

I'm putting my older yose 250w front hub on a spare bike with a 48v battery. Will be mostly a backup. Flat tyre mornings ect. Might be good for my son when he comes riding with me.

The 48v battery will also fit a step through bike I'm building but will have a different rear wheel hub.

@Michael 2025

Don't know about swapping batteries without swapping settings like speed and amps tbh
Why would you?
But yes you can

 

[Baz the balloon man]

I was also considering the battery required for a 17amp controller vs 15amp.

Would think 36 or 48 but if 48 then quality of the gears will be a concern seen Suntours motors stripped by any thing bigger than 36v .
I have not opened a Bafang motor yet but would hope to see metal gears as a brand leader in this field !

I am sure the lime bikes in London must have Bafang commercial quality components considering the abuse they receive especially from the kids lol like I would have given then in the 70s

 

[Baz the balloon man]

So this controller paired with a 250w or 350 w better that the Yose power controller ??

I have been looking at KT 17amp with lights and KT3 too just have to check it will fit in the controller housing on the Carrera and Raleigh bikes

 

[Wayners]

If my yose motor dies I won't be too upset. I'll buy a decent rear hub

 

[Baz the balloon man]

Well I went down this rabbit hole thinking bigger is better ( ‘said the actress to the bishop ‘)
And always worrying that I would not have enough battery or how long my battery would last ie how much should I spend for quality cell’s.

But what I have found with the right road conditions going from A to B or just going out for the day say to the pub .

Is the lighter and faster the bike e bike or not the better lighter bike = less power or effort to ride without going OTT .

Miss my Giant I made when a local doctor came round to ride my bird and went home with a Giant boom boom .

 

[thelarkbox]

Fwiw i installed a 250w yose rear wheel kit circa 2 years ago, i also bought a kt dual voltage controller with the intention of sourcing a 2nd 48v battery as i am a larger non enthusiastic cyclist.

2 years on and im still riding with the stock system, the kt controller is installed on a 2nd 'backup' bike..
limited experience 'test ridding' the kt 17a controller with 36v and no speed limit and i achieved 22mph but the last few miles were slow painfully slow to attain on the flat.

I would suggest buying a 250w kit and if you find the 15.5 mph speed limit too restrictive and you have confidence in your bikes brakes and stopping distance a 17a controller upgrade alongside a battery upgrade to 48v will give you both 33% more torque and speed putting 20 mph clearly at the optimum running speed (15 + 33% = 20)
Though moving at 20 mph in unlikely conditions (anything but down hill) is likely to draw interest and with a bike unrestricted to 15mph, it might not remain in your possession.
And you might want to monitor the motor temp considering the extra amps you will be providing it.

 

[saneagle]

Weight is 15 half stone
Hill grade about 5% to 10 % no heigh than that
10 miles there and back to work

15A at 48v should be fine for your weight and 5% hills. For 10%, 17A would be better.

 

[saneagle]

I was also considering the battery required for a 17amp controller vs 15amp.

It depends how far you want to go. 20Ah 48v batteries are pretty cheap these days from Greenlance and Yose, so why have any less.

 

[Peter.Bridge]

One of the things about speed on a bike, especially at higher speeds, on the flat it is very much affected by riding position and tyres. A rider on a road bike with drop handlebars and road tyres with 300 watts of power will do 25 mph, on a mountain bike with flat handlebars and MTB tyres they will do 20mph. To do 25 mph on the mountain bike needs 500 watts of power.

Going up hills it is much more about the combined weight of rider and bike