smooth-sided 700c rims?
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smooth-sided 700c rims?
I've found some old wheels with Sansin hubs (6-speed rear cluster) and Weinmann concave, hookless rims.
Anyone tell me about these? Should I just chuck the rims and keep the hubs for lack of proper tires? Or are can I find low-pressure tires for 700cs?
Thanks.
Anyone tell me about these? Should I just chuck the rims and keep the hubs for lack of proper tires? Or are can I find low-pressure tires for 700cs?
Thanks.
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I haven't seen hookless 700s. Sure they aren't 27s?
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Originally Posted by peripatetic
I've found some old wheels with Sansin hubs (6-speed rear cluster) and Weinmann concave, hookless rims.
Anyone tell me about these? Should I just chuck the rims and keep the hubs for lack of proper tires? Or are can I find low-pressure tires for 700cs?
Thanks.
Anyone tell me about these? Should I just chuck the rims and keep the hubs for lack of proper tires? Or are can I find low-pressure tires for 700cs?
Thanks.
I'm running 700c Concaves (yes, they do exist) on my Raleigh, and they've proven to be indestructible. I just put a set of Conti Grand Prix gumwalls on and they've been great. The tires were a bear to get on -- the bead is very tight. I run them at about 100 psi (the recommended pressure on the tire is 115). The tires say "Hook Bead Only", so I am emphatically not recommending you run those tires on those rims.... ;-)
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Originally Posted by raleigh_fan
Those rims are a deathtrap! Don't ride them -- send them to me and I'll dispose of them properly! ;-)
I'm running 700c Concaves (yes, they do exist) on my Raleigh, and they've proven to be indestructible. I just put a set of Conti Grand Prix gumwalls on and they've been great. The tires were a bear to get on -- the bead is very tight. I run them at about 100 psi (the recommended pressure on the tire is 115). The tires say "Hook Bead Only", so I am emphatically not recommending you run those tires on those rims.... ;-)
I'm running 700c Concaves (yes, they do exist) on my Raleigh, and they've proven to be indestructible. I just put a set of Conti Grand Prix gumwalls on and they've been great. The tires were a bear to get on -- the bead is very tight. I run them at about 100 psi (the recommended pressure on the tire is 115). The tires say "Hook Bead Only", so I am emphatically not recommending you run those tires on those rims.... ;-)
Wow, really? So no problems at all? I don't know if you saw, but there was a thread running about finding tires for hookless rims, and the consensus was that one has to use tires rated at 90 psi max, b/c those kinds of rims were made for lower pressure tires (a la old chrome wheels.)
Hmmm. I have a bunch of Contis, and I got scared off by the "Hook Bead Only" warning, but now I'm contemplating giving them a shot. So you've never had any issues with the things flying off, huh?
Oh, and yes, they're definitely 700s. The labeling is on the rim right next to the "Weinmann" label. Seem somewhat unique...
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Originally Posted by peripatetic
I don't know if you saw, but there was a thread running about finding tires for hookless rims, and the consensus was that one has to use tires rated at 90 psi max, b/c those kinds of rims were made for lower pressure tires (a la old chrome wheels.)
Rolls FFFFAAAASSSSTTT!
There was a big learning curve for me. We all had to endure that thread and I had to kill two tubes and try a couple different tires.
Hope this will help,
J B
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I strongly recommend using tires designed for 70 or perhaps 80 PSI on smooth-sided rims. The last time I checked, Harris Cyclery had some appropriate Continentals. I use Schwinn 27 x 1-3/8" knobbies on my UO-8; the sidewalls read 70 PSI, so I generally inflate them to 75 or so, never more than 80, and they have served me brilliantly.
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I have used those rims and love them. I am going to soon build up another pair with Campy HF hubs. The ones I used previously had Michelin tires on them, no problems with them blowing off. I think, repeat THINK, they ran at about 95 PSI. The one salvation of the concave rims are that the braking surfaces and sides of the rim are not curved outward and hold the tires well.
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Originally Posted by Rabid Koala
I have used those rims and love them. I am going to soon build up another pair with Campy HF hubs. ...
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
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Originally Posted by peripatetic
Wow, really? So no problems at all? I don't know if you saw, but there was a thread running about finding tires for hookless rims, and the consensus was that one has to use tires rated at 90 psi max, b/c those kinds of rims were made for lower pressure tires (a la old chrome wheels.)
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But isn't it true that when 700c rims started getting common, the higher pressure tires and also hooked rims were getting common? Were these just made at that point before they started usind the hooked beads but after they started making 700cs?
huh.
huh.