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I was so excited to find some 650c tires I pulled the trigger before realizing that these were tubulars....and not having a T wheel makes it even worse....yeah I know I am a
knucklehead :D so I guess I will send them back unless I can find a 650c front wheel. https://cimg8.ibsrv.net/gimg/bikefor...bb2e85c9a1.png Does anyone have a built front that they want to part with(tubular or clincher)? I am trying to find one to finish a Bertoni Crono. :D Best, Ben |
Originally Posted by xiaoman1
(Post 21517553)
I was so excited to find some 650c tires I pulled the trigger before realizing that these were tubulars....
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Originally Posted by smontanaro
(Post 21519170)
I have done the reverse. Man, I wish companies wouldn't use the same names on clinchers and tubulars.
I am still in the market for a 650c, so if anyone has a complete front wheel, I would be interested in a PM from you. Thanks, Ben :thumb: |
Maiden voyage on Vittoria Corsas
I picked up a nice set of old tubular wheels in a trade with member Andy_K a month or so ago. (Thanks, Andy!) The Normandy Luxe hubs proved to be in tip-top shape after bearing ball renewal and fresh grease. Cleaned off the fossilized tubular cement with a small brass-bristled brush and some lacquer thinner, got down pretty much to bare metal. The new Vittorio Corsas went on perfectly with Jantex tape--I was too chicken to use cement for my first attempt at mounting tubulars. They're nominally 28mm wide, but actually measure just a shade over 27. Close enough.
And really, "perfect" might be too strong a word. I got confused and both labels on the tire sidewalls ended up on the non-drive side. Oops. I suppose I should be thankful that they're both on the same side of the bike. Earlier today, I took them out on a ten-mile rail-trail outing with my wife (on the wonderful Lamoille Valley Rail Trail). It's unpaved, though quite smooth, so I had some misgivings, the more so since I don't yet have a spare tubular or even any sealant. But I concluded that since these tires are going to live in Vermont, where it's hard to go anywhere without encountering some gravel road, they might at well get used to it from the start. They performed very well. I had not ridden on tubulars since 1971, when Complete Book of Bicycling author Eric Sloane sold me on them at first mention: "...[T]hey and the wheels they are used on are lighter and more responsive, making cross-country pedaling easier and more enjoyable." Frankly, they were a big disappointment 49 years ago. In particular, I didn't notice that they made pedaling even slightly easier, although the 45-23 low gear on my new Gitane TdF--compared to the 40-28 or whatever it was on my previous Raleigh Record--may have had something to do with that. Today's ride was nice. I didn't expect to notice a dramatic change in the quality of the ride, and I didn't. If I pedaled along thinking "wow, these tubulars are really responsive and enjoyable," then yeah, I could sort of imagine that something wonderful was going on. Was that the tires or the 32-spoke wheels? More likely just my imagination. If I just rode along and looked at the scenery they felt pretty much like the 28mm Paselas that were on there before (I had the tubulars inflated to my usual 70 psi). That's fine--I'm too old to believe in magic these days Still, it's fun to be one of the cool kids now. [Suddenly anxious] Wait, you guys aren't going to make fun of my label placement, are you? |
Originally Posted by jonwvara
(Post 21522814)
---I'm too old to believe in magic these days
Still, it's fun to be one of the cool kids now. [Suddenly anxious] Wait, you guys aren't going to make fun of my label placement, are you? However, you really need to try them on pavement for a real comparison to clinchers. :innocent: P.S. Purchase a couple of cans of Vittoria Pit Stop for an emergency flat repair. If you'd like I can send you a new Vittoria Rally to use as a spare. :D |
Just put one of these on the front of my Rossin. Wow! Great tire. My bike really jumped.
https://cimg4.ibsrv.net/gimg/bikefor...07e3da9a49.jpg |
Originally Posted by semroc
(Post 21525025)
Just put one of these on the front of my Rossin. Wow! Great tire. My bike really jumped.
https://cimg4.ibsrv.net/gimg/bikefor...07e3da9a49.jpg |
Originally Posted by DiabloScott
(Post 21525072)
Seeet! Does it measure a true 25mm or a little wide? Actually I was looking at 28mm because that's a hard max for the Merckx.
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Originally Posted by jonwvara
(Post 21522814)
....... deletion.......
Today's ride was nice. I didn't expect to notice a dramatic change in the quality of the ride, and I didn't. If I pedaled along thinking "wow, these tubulars are really responsive and enjoyable," then yeah, I could sort of imagine that something wonderful was going on. Was that the tires or the 32-spoke wheels? More likely just my imagination. If I just rode along and looked at the scenery they felt pretty much like the 28mm Paselas that were on there before (I had the tubulars inflated to my usual 70 psi). That's fine--I'm too old to believe in magic these days ......... Comparing a tire’s effect on ride quality is admittedly subjective. But one thing I compare (beyond how I think it feels) is this: while riding I keep an eye on my front tire’s leading edge. I watch how much vibration it exhibits. Clinchers vs tubular or even a hard tire vs a supple tire all show different degrees of bounce or chatter which is easily seen. This is not entirely objective but it is at least observable. My supple Corsa G+’s barely move. Other tires chatter. It would be interesting to see if others notice any correlation of tire quality to ride quality this way. Other factors in play here: the wheel build (rim type, spoke number/gauge/butted or not, etc.) and tire size/inflation are probably the biggest two. My wheel builds are all 36 spoke 3 cross and butted spokes (15/16/15 or 1.8/1.6/1.8). For all my tubulars I ride the rear at the lowest psi recommendation and the front 5-10 psi lower. Today on 25mm tires that meant a bit over 100 rear and a bit over 90 front. |
Originally Posted by DiabloScott
(Post 21525072)
Seeet! Does it measure a true 25mm or a little wide? Actually I was looking at 28mm because that's a hard max for the Merckx.
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Originally Posted by semroc
(Post 21526236)
It's 25mm. 80psi, in back 78 in front. Sweet ride.
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Originally Posted by semroc
(Post 21526236)
It's 25mm. 80psi, in back 78 in front. Sweet ride.
Originally Posted by squirtdad
(Post 21526466)
measured mine at 25mm (ruller and caliper....what can is say) at 130psi
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Originally Posted by obuckler
(Post 21526198)
I believe in magic!
Comparing a tire’s effect on ride quality is admittedly subjective. But one thing I compare (beyond how I think it feels) is this: while riding I keep an eye on my front tire’s leading edge. I watch how much vibration it exhibits. Clinchers vs tubular or even a hard tire vs a supple tire all show different degrees of bounce or chatter which is easily seen. This is not entirely objective but it is at least observable. My supple Corsa G+’s barely move. Other tires chatter. It would be interesting to see if others notice any correlation of tire quality to ride quality this way. Other factors in play here: the wheel build (rim type, spoke number/gauge/butted or not, etc.) and tire size/inflation are probably the biggest two. My wheel builds are all 36 spoke 3 cross and butted spokes (15/16/15 or 1.8/1.6/1.8). For all my tubulars I ride the rear at the lowest psi recommendation and the front 5-10 psi lower. Today on 25mm tires that meant a bit over 100 rear and a bit over 90 front. By the way, I'm also riding a Vittoria G+ in front, and another Vittoria G+ in back. (That's roundabout phrasing, but I couldn't come up with a rational-looking way of making a plural out of "Vittoria G+.") They seem like nice tires, although I have nothing to compare them to. |
A question for the group. I bought a pair of tubular rims a year or so ago, and a set of Record hubs is awaiting me in Ohio.
A couple months ago I suffered an injury to my left index finger and, just this week learned it will never again be fully functional. As in the flexor tendon waited too long to be repaired. Doctor error. Can I consider mounting tubulars in this condition? It wouldn't be the end of the world. TIA |
seedsbelize I just went out to the garage and tried mounting a tubular to a rim without using my index finger. It was more difficult but not insurmountable. My method is to insert the valve into its hole, then with the wheel vertical, valve and hole at the top, I grip the tire on either side of the valve with my two hands and stretch it onto the rim working from top to bottom. Gripping and stretching without use of the index finger was awkward for me. The tire I used has been previously mounted to a rim, so not as difficult as some brand new tires. My suspicion is that, just performing your normal daily tasks, you will learn to compensate with your other fingers but I'm no occupational therapist.
Brent |
Originally Posted by obrentharris
(Post 21527958)
seedsbelize I just went out to the garage and tried mounting a tubular to a rim without using my index finger. It was more difficult but not insurmountable. My method is to insert the valve into its hole, then with the wheel vertical, valve and hole at the top, I grip the tire on either side of the valve with my two hands and stretch it onto the rim working from top to bottom. Gripping and stretching without use of the index finger was awkward for me. The tire I used has been previously mounted to a rim, so not as difficult as some brand new tires. My suspicion is that, just performing your normal daily tasks, you will learn to compensate with your other fingers but I'm no occupational therapist.
Brent |
Originally Posted by seedsbelize
(Post 21527877)
A question for the group. I bought a pair of tubular rims a year or so ago, and a set of Record hubs is awaiting me in Ohio.
A couple months ago I suffered an injury to my left index finger and, just this week learned it will never again be fully functional. As in the flexor tendon waited too long to be repaired. Doctor error. Can I consider mounting tubulars in this condition? It wouldn't be the end of the world. TIA I was just thinking that you could have a slightly smaller "rim" (maybe a clincher 26" rim). cut it in half, hand the tire from the top half hung on a hook, fit the bottom half onto the bottom of th etubular, and hand a (say 15#) weight from it. Let it sit in a dark closet a few months. Caution, the above has had all the rational thought and review that was left over in my little brain while being primarily occupied with typing. But pre-stretching tubulars has been done for probably more than the past century, Not a new or untested. concept Ben |
Old tubulars - possible to re-glue base tape ?
Hi, does anyone have experience of repairing loose base tape on old tubulars ?
I picked up a 1970s Motobecane 10-speed at a junk yard and want to clean it up for occasional short trips around where I live. The old tubulars were flat of course after years of being abandoned somewhere, but I pumped them up to 100 psi and they held pressure without an issue. When I took them off the rims they came right off because the glue was long gone, but some of the base tape is not so well connected to the tyre. I want to keep the bike as original as possible and not spend much money on it, so if I could avoid buying 2 new tubulars I’d like to try to fix them up. |
seedsbelize I would avoid Continental tubulars. The Competitions are a real bear and the Sprinter Gatorskins are almost as bad. The Vittoria Corsa and Rally are much easier. You could have the LBS or a neighbor put them on your stretching rims and then do your gluing a couple weeks later.
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Originally Posted by Trevsears
(Post 21528445)
Hi, does anyone have experience of repairing loose base tape on old tubulars ?
I picked up a 1970s Motobecane 10-speed at a junk yard and want to clean it up for occasional short trips around where I live. The old tubulars were flat of course after years of being abandoned somewhere, but I pumped them up to 100 psi and they held pressure without an issue. When I took them off the rims they came right off because the glue was long gone, but some of the base tape is not so well connected to the tyre. I want to keep the bike as original as possible and not spend much money on it, so if I could avoid buying 2 new tubulars I’d like to try to fix them up. |
Originally Posted by seedsbelize
(Post 21527877)
A question for the group. I bought a pair of tubular rims a year or so ago, and a set of Record hubs is awaiting me in Ohio.
A couple months ago I suffered an injury to my left index finger and, just this week learned it will never again be fully functional. As in the flexor tendon waited too long to be repaired. Doctor error. Can I consider mounting tubulars in this condition? It wouldn't be the end of the world. TIA |
Originally Posted by DiabloScott
(Post 21525072)
Seeet! Does it measure a true 25mm or a little wide? Actually I was looking at 28mm because that's a hard max for the Merckx.
|
Originally Posted by Trevsears
(Post 21528445)
Hi, does anyone have experience of repairing loose base tape on old tubulars ?
I picked up a 1970s Motobecane 10-speed at a junk yard and want to clean it up for occasional short trips around where I live. The old tubulars were flat of course after years of being abandoned somewhere, but I pumped them up to 100 psi and they held pressure without an issue. When I took them off the rims they came right off because the glue was long gone, but some of the base tape is not so well connected to the tyre. I want to keep the bike as original as possible and not spend much money on it, so if I could avoid buying 2 new tubulars I’d like to try to fix them up. $16 each for new base tape. If you spring for that, you may as well spend another $20 to get the tubes replaced. Personally, I would buy new tires. |
We all know tires make the ride. It was proven to me once again over the last few days. I acquired a 78 Team Champion and just so I could ride it, I threw some Pelissier 2000/GP4s on it mounting Challenge Strada tires. Bike felt sluggish. Rode it twice just to be sure it wasn't just an off day for me. Still a slug. Switched to Pelissier 2000/OR10 with FMB 25mm Paris-Roubaix. Well, I was having an off day, but the bike was alive and I rode further than I would have otherwise. Granted the rims are lighter on the latter, but this is not the first time I have put good tubulars on a slug and it came alive.
My conclusion. Spend the money of good tires. You only live once. I have found Veloflex and FMB to be a cut above most others and less prone to flatting. YMMV https://cimg2.ibsrv.net/gimg/bikefor...4a0dcc5109.jpg |
Originally Posted by Wileyone
(Post 21528758)
I just mounted a set of Veloflex Vlaanderen 27mm on my s.
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