Weinmann concave rim
03-13-14, 12:47 PM
#26
What??? Only 2 wheels?
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Ages ago I had reason to ask someone (probably a bike shop, don't really remember) to build me a new rear wheel for my commuter UO8, replacing an alloy Fiamme Yellow Label. It felt heavy from the start. When it pretzelized itself a month or two later I wasn't too broken up. Of course the pretzelization may not have been the rim's fault.
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03-13-14, 02:02 PM
#27
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So you're the guy who hassem all?
03-13-14, 02:45 PM
#29
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I want me a set of those babies in 700C for my Grand Record, which is currently in need of some wheels. I wish I'd seen Pastor Bob's post a little earlier. I have a set of NOS Normandy hubs and probably all the spokes I need, but the rims are proving harder, if only because rims and wheels are such a pain to ship. I'm guessing that it will be easier to find a whole pair of donor wheels somewhere.
By the way, were the eyeleted and non-eyeleted versions otherwise pretty much identical? The non-eyeleted rims came on some low-mid range bikes--that's what was originally on my 1979 Moto Super Mirage, if I remember that right. Not sure at what level the eyeleted rims were used instead.
By the way, were the eyeleted and non-eyeleted versions otherwise pretty much identical? The non-eyeleted rims came on some low-mid range bikes--that's what was originally on my 1979 Moto Super Mirage, if I remember that right. Not sure at what level the eyeleted rims were used instead.
Last edited by jonwvara; 03-13-14 at 07:18 PM.
03-13-14, 03:40 PM
#30
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I did a long, fully-loaded tour on a set of concaves and thought they were great. They were about the best touring rim you could get in the 70's.
03-13-14, 05:53 PM
#31
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Yeah, I think the one pair I still have is hooked. Next time I take a tire off I will get a picture. They must have went to a hooked design late in their life.
03-13-14, 06:06 PM
#32
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They were a hot rim for awhile. Not aero but has that NACA duct attempt. Strong side loads for brake crush.
Tooling is probably long gone but makes one wonder why they don't re-intro them for the retro / fixie scene.
They were a hot rim for awhile. Not aero but has that NACA duct attempt. Strong side loads for brake crush.
Tooling is probably long gone but makes one wonder why they don't re-intro them for the retro / fixie scene.
04-10-15, 09:26 PM
#33
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I have these same rims on my 78' Montebecane Sprintour and trying to figure if these are made of aluminum or ? I want to by some product to shine them and not sure what to buy. Thank you.
04-10-15, 09:53 PM
#34
Senior Member
I also have the Weinmann concave rims, 36h front and rear on my '79 Motobecane Grand Touring.
Just amazing they are running true and still going strong
Just amazing they are running true and still going strong
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04-10-15, 09:56 PM
#35
Senior Member
Apparently, they are aluminum alloy. You can polish them with aluminum polish -- Mother's is popular. It smells like it has a little ammonia in it, but the MSDS doesn't say so. If there is much corrosion, 0000 steel wool works well and the polish will remove any scratches left by the steel wool.
04-11-15, 01:49 PM
#36
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I use Folding Continental Gatorskins at 110 psi. for my Raleigh Competition GS with the Weinman concave rims. No problems. And a side bonus, I did not have to lever the tires on. Just used my hands. Autosol Metal Polish does a great job keeping them nice and shiny.
Last edited by Phloom; 04-11-15 at 01:57 PM.
04-12-15, 08:18 AM
#37
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Have these on my mixte-I believe they are anodized. Sort of a matt finish on them. Running pasellas (sp?) on them.
04-12-15, 12:16 PM
#38
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I absolutely despise Weinmann concave rims, as far as I am concerned they have no reason to exist, they were ungodly heavy, could not take folding tires, were very strong side to side but had a tendency to get flat spots and were very unkind to the wheel builder. Awful with a capital A
04-12-15, 01:30 PM
#39
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I absolutely despise Weinmann concave rims, as far as I am concerned they have no reason to exist, they were ungodly heavy, could not take folding tires, were very strong side to side but had a tendency to get flat spots and were very unkind to the wheel builder. Awful with a capital A
jk, but I was just getting ready to take the ones from my oldie moto out back to clean up. They are certainly heavy, and there is definitely a hop/flat spot on the rear wheel. Maybe I should just toss them and not waste the time cleaning, eh?
Nah. The frame has a dent as well, so it wouldn't be right to put anything other than these back on it...
04-25-16, 05:07 PM
#40
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Agreed. However, today's designs are a bit better:
- Concave rims were single-wall; many newer rims have double walls, which make them stronger and less "twistable". A modern well-built wheel with 32 spokes is often stronger than a Concave with 36 spokes.
- Maybe others had them, but the Weinmann Concave rims had no hooks. It means maximum tire pressure was around 50-70 psi. If you try a modern tire at 100-120 psi, it's likely the bead will get off the rim.
- And a detail: it's hard to keep a Concave rim clean.
- Concave rims were single-wall; many newer rims have double walls, which make them stronger and less "twistable". A modern well-built wheel with 32 spokes is often stronger than a Concave with 36 spokes.
- Maybe others had them, but the Weinmann Concave rims had no hooks. It means maximum tire pressure was around 50-70 psi. If you try a modern tire at 100-120 psi, it's likely the bead will get off the rim.
- And a detail: it's hard to keep a Concave rim clean.
I loved the rims and other than an occasional broken spoke, never had a problem. The wheels held true quite well and I put a lot of miles on them.
I later built another set with the same rims but with Specialized hubs since Weyless went out of business. It is a shame too. They made an outstanding product.
04-25-16, 05:55 PM
#41
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This thread has more lives than a cat.
04-25-16, 06:31 PM
#42
Still learning
04-25-16, 07:34 PM
#43
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Ok how about Weinmann Convex rims with raised dimples at the spoke hole?
I had a pair fitted on my student Grand Prix BITD to replace the steel.
I had a pair fitted on my student Grand Prix BITD to replace the steel.
04-25-16, 07:56 PM
#44
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I have a pair of 700c Alesa concaves, also made in Belgium. I think someone said they were possibly made by Weinmann, but I wouldn't say that's for sure. They aren't very heavy really, but they are pretty sturdy. 
04-25-16, 09:31 PM
#45
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For sure. The pair of 26" Weinmann concaves on my fixed-gear MTB might live forever, too. 
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04-26-16, 05:28 AM
#47
What??? Only 2 wheels?
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04-26-16, 06:23 AM
#48
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Seems like a re-tread to me.
04-26-16, 06:44 AM
#49
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Ha! Amazing how this thread has re-Zombied several times.
However, for anyone actually desiring a NEW pair of these rims, touchbase with Wayne Bingham at Velo Classique in Purcellville, VA. Last time I asked, he had a stack of them, some with eyelets, some without.
However, for anyone actually desiring a NEW pair of these rims, touchbase with Wayne Bingham at Velo Classique in Purcellville, VA. Last time I asked, he had a stack of them, some with eyelets, some without.
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04-26-16, 09:51 AM
#50
What??? Only 2 wheels?
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