Yose Power Hub- need a new rim!

Wayners

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Jun 5, 2023
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My forks are 1990s 1inch however I've ordered a cheap set of forks from Bulgaria..
Will post how that works out. Means I can fit discs on the front hub wheel saving the rim from wear.
I've ordered Avid bb7 mechanical brakes vs hydraulic. I've chatted to a few people which put me off hydraulic brakes, plus I worry the cheap forks won't take the strain.
Don't know if I've done the correct thing although I will ask about hydraulic brakes on my next conversion and give them ago later this year.

My rim brake pads last about 8 weeks max. Wear out very fast. Think thats what has killed the wheel rims
 
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Cadence

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My forks are 1990s 1inch however I've ordered a cheap set of forks from Bulgaria..
I'll be very interested to see what the forks are like. Been searching for a 26" wheel rigid disc fork with a 1" steerer for some time without success.
 

saneagle

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Oct 10, 2010
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My forks are 1990s 1inch however I've ordered a cheap set of forks from Bulgaria..
Will post how that works out. Means I can fit discs on the front hub wheel saving the rim from wear.
I've ordered Avid bb7 mechanical brakes vs hydraulic. I've chatted to a few people which put me off hydraulic brakes, plus I worry the cheap forks won't take the strain.
Don't know if I've done the correct thing although I will ask about hydraulic brakes on my next conversion and give them ago later this year.

My rim brake pads last about 8 weeks max. Wear out very fast. Think thats what has killed the wheel rims
The people, who put you off hydraulic brakes, are nuts, and so are you to listen to people, who don't have a clue. There's absolutely no downside. They work consistently day in, day out, without maintenance for years. Plus, no other types of brakes can match the modulation. Avid BB7 are absolute shite by comparison with even the cheapest hydraulics I've tried. Even those cheap Chinese cable operated hydraulic brakes will leave BB7s a long way behind in their wake.

The internet is full of misinformation. On nearly every forum, including this one, you can find posts about complicated bleeding procedures, but that's all BS from people who've never actually had them, otherwise they'd know that most bike hydraulic brakes are self-bleeding. The system is closed, so you never need to replace the hydraulic oil either. My oil has been in for 14 years and very many thousands of miles since I've had them, and I bought them second-hand with the oil already in the closed system. During that time, they've had about 3 or 4 sets of pads that take about 5 minutes to fit, and that's the only maintenance they've had. Pads last about 5,000 miles of moderately hilly riding, and they cost about £0.70 a pair from Aliexpress.

The braking forces are the same whether you have BB7s or hydraulics, since all the force goes through the same caliper. That's unless you want to say that BB7s are shite and can't brake hard enough.
 
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Wayners

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My other concern was 3 pin yellow plug which Is on the brake leavers. 2 pin red seems more common than yellow, however both are available.
I'll see how it works out with the mechanical brakes, but I'll definitely get hydraulic on all my furniture bikes.
@Canarere
I'll post information on forks. Delivery expected on 10th march.
 

Nealh

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Hydraulic brakes are fit and forget bar maybe a set of of pads once a year.
Though on the South Downs I have gone thru a set of pads in under 5 mins due to the grinding paste effect of the chalky /mud conditions in the wet.
One reason when out on a long run I always carry a spare set or two of pads .
EPJ also suffered the same on his S/D's ventures.
 
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matthewslack

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Nov 26, 2021
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Pad life is clearly highly variable.

I can get 2,000+ miles in summer, even at touring weight on clean roads. But muddy winter puddles cut that down a lot.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
7,577
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Telford
My other concern was 3 pin yellow plug which Is on the brake leavers. 2 pin red seems more common than yellow, however both are available.
I'll see how it works out with the mechanical brakes, but I'll definitely get hydraulic on all my furniture bikes.
@Canarere
I'll post information on forks. Delivery expected on 10th march.
When you have 3-pin connectors on your bike, you can use 2 or3-pin brake switches. If your bike has 2-pin connectors, you can only use 2-pin brake switches, though there5nothing stopping you from running a 5v wire from anything else (Throttle or pedal sensor) up to the handlebars to power a 3-pin one.
 

Wayners

Esteemed Pedelecer
Jun 5, 2023
451
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Gloucester
Update on the wheel rim.
Took wheel to a bike repair shop about 9 miles away from my house for a price to replace rim, and I'm looking at £160. Cheaper to buy a new wheel so I've decided to try and do it myself.
Will order a new rim in the hope I can use the existing spokes as I feel I've got nothing to loose.
 

Nealh

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Aug 7, 2014
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Update on the wheel rim.
Took wheel to a bike repair shop about 9 miles away from my house for a price to replace rim, and I'm looking at £160. Cheaper to buy a new wheel so I've decided to try and do it myself.
Will order a new rim in the hope I can use the existing spokes as I feel I've got nothing to loose.
One will have to measure rim ERD on both rims , if they are with in 1 or 2mm of each other then one should be able to reuse the spokes.
Rim ERD's can vary greatly fro the same size rim .
 

tony-t

Just Joined
Sep 20, 2024
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I need to fit a new rim to my front yose hub wheel.
I unsure if it's something I can tackle or if I should just find a local shop to do it?
Problem is I've been running rim brakes so I'm going to upgrade to discs. Reading through it seems there is lots to consider when buying a rim and getting the correct spokes.
I wonder if easier to buy a new hub wheel?
 

Nealh

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Aug 7, 2014
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Yose front wheel has a edr of 222m both sides it seems using a tape measure
I meant the old rim vs a new rim , if yose has changed rim supplier or used a different rim then both ERD's may well differ by more then a couple of mm.
That would mean one likely can't reuse old spokes.
 

Wayners

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Jun 5, 2023
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@Nealh
I don't think I can get an original yose rim replacement. I will have to order a new rim then maybe new spokes. Currently trying to find out what I need as I could waste £50+ which won't be worth it
 

Nealh

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Aug 7, 2014
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One can't order spokes until a new rim has been measured , some may give the ERD at purchase point but one needs to double check the info is correct ( once it is is at hand to do so).
If going down the self build route then S/S Sapim strongs (spokes ) are very good , ryanbuilds wheels/ryanspokes can supply spokes of any length.
 

Wayners

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Jun 5, 2023
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I'm looking at £40 for a rim and £40 for spokes plus a few tools.
If I can't reuse spokes I don't think its worth the effort Vs just buying a new hub wheel.
I'd probably just sell the old hub motor for £20. I've emailed yose so see what they say
 

saneagle

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Oct 10, 2010
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I'm looking at £40 for a rim and £40 for spokes plus a few tools.
If I can't reuse spokes I don't think its worth the effort Vs just buying a new hub wheel.
I'd probably just sell the old hub motor for £20. I've emailed yose so see what they say
Choose a rim that looks similar to the old one. Look at the photo and judge how deep the well in the rim is. Some are very deep and some are very shallow. If you get one that at least looks equally deep, you have a chance of re-using the spokes.

Alternatively, measure the internal diameter of your present rim in two or three places (must be accurate measurement), average the results then add 5mm to get the approximate ERD, then you can buy a rim with a similar ERD.

Having said all that, if your spokes are currently 13g or, even worse, 12g, you might as well buy a set of 14g spokes anyway because they're lighter, give a better ride, are easier to build with and give a more reliable build.
 
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Wayners

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Jun 5, 2023
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I can't get a similar rim unfortunately. What I'm thinking is just buy a rim suitable for a hub then buy new spokes.
Is that possible?
How do you measure for spokes?
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
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I can't get a similar rim unfortunately. What I'm thinking is just buy a rim suitable for a hub then buy new spokes.
Is that possible?
How do you measure for spokes?
When you buy a new rim, you use an online spoke calculator tool to figure out how long the spokes need to be. I use this one:


As you already have a rim and spokes, you can practice using the tool to see if your calculation gives the size of the spokes you already have.

You measure spokes from the bend one end to the other end with the thread on it.
 
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Wayners

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Jun 5, 2023
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I've been hunting online trying to find a suitable rim at sensible money, but there always seems to be something not right like 32 holes Vs the 36 holes I need. Or I did find one but it was 44 euros delivery and the single rim order didn't meet the minimum order value.
Then I got lucky and found this https://www.tradeinn.com/bikeinn/en/ryde-andra-10-disc-rim/140833778/p

Because its a c650 26 inch not a 599 26 inch wheel there maybe 1 or 2mm difference. Probably still be ok though?.

Any thoughts
Thanks
 

matthewslack

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Nov 26, 2021
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I've been hunting online trying to find a suitable rim at sensible money, but there always seems to be something not right like 32 holes Vs the 36 holes I need. Or I did find one but it was 44 euros delivery and the single rim order didn't meet the minimum order value.
Then I got lucky and found this https://www.tradeinn.com/bikeinn/en/ryde-andra-10-disc-rim/140833778/p

Because its a c650 26 inch not a 599 26 inch wheel there maybe 1 or 2mm difference. Probably still be ok though?.

Any thoughts
Thanks
Read the details on that page: "ETRTO 19-559". Just what you need.