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-   -   Totally Tubular (https://www.bikeforums.net/showthread.php?t=154679)

squirtdad 06-10-20 02:47 PM


Originally Posted by semroc (Post 21526236)
It's 25mm. 80psi, in back 78 in front. Sweet ride.

measured mine at 25mm (ruller and caliper....what can is say) at 130psi

DiabloScott 06-10-20 02:52 PM


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

OK thanks, so the 27mm version ought to be fine for me. I do like'em a little cushier.

jonwvara 06-10-20 04:12 PM


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.

Well, there's about a mile of new pavement between here and the village of Marshfield. I'll have to ride them over it and see what I see.

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.

seedsbelize 06-11-20 08:44 AM

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

obrentharris 06-11-20 09:25 AM

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

seedsbelize 06-11-20 10:07 AM


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

I feel the same, but wanted to check. Thanks for doing that.

79pmooney 06-11-20 10:23 AM


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

Also, keep your eyes and ears open to what tires (and to a lesser extent rims) mount easiest, This isn't like clinchers where too easy and you risk blow-offs. Once the glue is set, tightness doesn't matter.

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

Trevsears 06-11-20 01:20 PM

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 Iíd like to try to fix them up.

Classtime 06-11-20 02:12 PM

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.

squirtdad 06-11-20 02:40 PM


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 Iíd like to try to fix them up.

another option with the caveat you get what you pay for is the 3 for 50 deal here tubular tire sewup tire Servizio Corse $19.95 tubular tires at Yellow Jersey; possibly the Best Value Tubular In America for 2020!

semroc 06-11-20 03:33 PM


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

The two challenge tubulars I've mounted went on very easy after a two day rim stretch. Too bad about your finger. Way to toughen it out and stick with tubulars like a tough old professional. ☺

Wileyone 06-11-20 04:05 PM


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.

I just mounted a set of Veloflex Vlaanderen 27mm on my Limongi the rear cleared fine but I had to put a shim under the front brake mount so it would clear. Really Really nice tyres.

CV-6 06-11-20 04:06 PM


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 Iíd like to try to fix them up.

Tire Alert

$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.

CV-6 06-11-20 04:19 PM

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

DiabloScott 06-11-20 06:20 PM


Originally Posted by Wileyone (Post 21528758)
I just mounted a set of Veloflex Vlaanderen 27mm on my s.

definitely on my short list of possibles... true to size?

CV-6 06-11-20 10:35 PM


Originally Posted by DiabloScott (Post 21528951)
definitely on my short list of possibles... true to size?

Two sets. 26.5 and 27.1mm

Trevsears 06-12-20 12:18 AM


Originally Posted by CV-6 (Post 21528762)
$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.

OK Iím convinced. For some reason I had only considered the binary option of keeping the old tyres or replacing with Vittoria Corsa G2 Graphene tyres at a cost of 140 EUR (I have them on my other bike and didnít think of cheaper options).
Thx for the tip, donít know what I was thinking trying to fix up 30 year old rubber anyway🙈

Trev

smontanaro 06-12-20 04:53 AM


Originally Posted by CV-6 (Post 21529318)
Two sets. 26.5 and 27.1mm

I've got them on a couple bikes right now. I won't run to the basement to pump them up and measure again :), but I've found them to run true-to-size as well. Vlaanderen are very well-constructed tires. They mount easily and roll well. No hops or wobbles. And then there's the ride...

Wileyone 06-12-20 06:05 AM


Originally Posted by DiabloScott (Post 21528951)
definitely on my short list of possibles... true to size?

Mine measure to 28mm.

seedsbelize 06-12-20 07:58 AM


Originally Posted by 79pmooney (Post 21528100)
Also, keep your eyes and ears open to what tires (and to a lesser extent rims) mount easiest, This isn't like clinchers where too easy and you risk blow-offs. Once the glue is set, tightness doesn't matter.

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

The rims are Mavic Monthlery. I guess if I cant mount them, I could find somebody who can.

squirtdad 06-12-20 09:53 AM


Originally Posted by DiabloScott (Post 21528951)
definitely on my short list of possibles... true to size?

I just got some Vittoria Corsa Control G+ in 30mm. Don't know if they are are on your short list. They are on rims at 100psi (max listed is 115 psi) and measure 30 mm They fit with 105 5800 brakes that say ok for 28 mm and fit with room on my 85 team miyata. the were easy to put on for stretching....much easier than the tufo's i had on a bike that has moved on and the challenge elites i have on another bike. mavid reflex CD rims with ultegra 6800 hubs.

seedsbelize 06-12-20 10:27 AM

Thanks for all the tips, whether directed at me or not. I would prefer to find tires in Mexico, even at half again the price. I am so far unable to find Vlaanderens. I have an inquiry in to an Ebay seller as to shipping here. Is Ebay a safe place to shop these days?

L134 06-12-20 10:51 AM

Best I can tell from Veloflex site, Vlaanderens are no longer in production. 🙁

CV-6 06-12-20 03:20 PM


Originally Posted by L134 (Post 21530083)
Best I can tell from Veloflex site, Vlaanderens are no longer in production. 🙁

I believe you are correct. Which explains some of the really good prices in the last few months. Check around and you may find some. Lordgun.com had some as I am writing this.

L134 06-12-20 04:13 PM


Originally Posted by CV-6 (Post 21530623)
I believe you are correct. Which explains some of the really good prices in the last few months. Check around and you may find some. Lordgun.com had some as I am writing this.

thanks! As of a few minutes ago, only 2 left. I decided instead to order 4 ProTour Gum Sidewall directly from Veloflex taking a chance Iíll love them as much as the Vlaanderens. With the four, I get free shipping which brings my per tire cost below what Iíd be paying for those last 2 Vlaanderens. Oh, and that included a 10% discount code received for subscribing to their newsletter.

smontanaro 06-12-20 04:39 PM


Originally Posted by L134 (Post 21530083)
Best I can tell from Veloflex site, Vlaanderens are no longer in production. 🙁

Is there an obvious replacement? The only one I see which might be a replacement is the Pro Tour 28mm.

L134 06-12-20 04:41 PM


Originally Posted by smontanaro (Post 21530763)
Is there an obvious replacement? The only one I see which might be a replacement is the Pro Tour 28mm.

That was my conclusion. I just ordered 4 direct. I hope I'm not disappointed.

squirtdad 06-12-20 05:57 PM

I'm one of those guys who read instructions.....but Vittoria has confused me. on my new can of mastik it says put a coat on the rim and on the tire tape and then wait a day, putting another coat on the rim only, wait 3 to 5 minutes and mount the tire. the instructions that came with my vittoria tires say put glue on the tire and wait 30 to 60 minutes Then put glue on the rim and mount the tire. fairly different only consistent instruction is to wait 24hours before riding

thoughts and/or what have you done?

semroc 06-12-20 06:32 PM


Originally Posted by squirtdad (Post 21530871)
I'm one of those guys who read instructions.....but Vittoria has confused me. on my new can of mastik it says put a coat on the rim and on the tire tape and then wait a day, putting another coat on the rim only, wait 3 to 5 minutes and mount the tire. the instructions that came with my vittoria tires say put glue on the tire and wait 30 to 60 minutes Then put glue on the rim and mount the tire. fairly different only consistent instruction is to wait 24hours before riding

thoughts and/or what have you done?

The first way seems pretty good. I put glue on the rim, and tire. Let dry for 2 hours or more. Put glue on rim. Let dry ten minutes. Mount tire. Pump up to what I ride it to. Roll it around with a little pressure to seat it. Let it sit for a day. Then enjoy the ride, and seek out pave sectors. That's the way I've done it since 1988.

smontanaro 06-12-20 06:55 PM


Originally Posted by squirtdad (Post 21530871)
... only consistent instruction is to wait 24hours before riding

thoughts and/or what have you done?

First, stop reading directions. ;)

It's not just Vittoria I don't think. Everybody has their own special method of gluing tires. I expect the rest times matter less than the instructions would imply. Just make sure the glue gets plenty of time to harden after mounting and inflating the tires.


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