Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Totally Tubular

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Totally Tubular

Old 01-17-24, 03:03 PM
  #3176  
Full Member
 
spclark's Avatar
 
Join Date: Jul 2023
Location: "Driftless" WI
Posts: 362

Bikes: 1972 Motobecane Grand Record, 2022 Kona Dew+

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 149 Post(s)
Liked 139 Times in 102 Posts
Originally Posted by squirtdad
How much glue on the dog's nose?
He's just watching the glue dry while his human does something else important.
spclark is offline  
Old 01-17-24, 03:18 PM
  #3177  
Senior Member
 
Join Date: Aug 2007
Location: Evanston, IL
Posts: 5,805

Bikes: many

Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 1413 Post(s)
Liked 1,298 Times in 722 Posts
Originally Posted by spclark
He's just watching the glue dry while his human does something else important.
He's waiting for you to get done with the boring stuff so you can take him for a walk...
__________________
Monti Special
smontanaro is offline  
Likes For smontanaro:
Old 01-17-24, 03:40 PM
  #3178  
It's MY mountain
 
DiabloScott's Avatar
 
Join Date: Sep 2006
Location: Mt.Diablo
Posts: 9,979

Bikes: Klein, Merckx, Trek

Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
Quoted: 4274 Post(s)
Liked 2,912 Times in 1,576 Posts
Originally Posted by squirtdad
How much glue on the dog's nose?
Originally Posted by smontanaro
He's waiting for you to get done with the boring stuff so you can take him for a walk...
Originally Posted by spclark
He's just watching the glue dry while his human does something else important.
SHE is sniffing the old tire with 2-year old glue... while she's not perfectly behaved, she knows to keep her nose out of my dinner and my contact cement.


Ursa
DiabloScott is offline  
Likes For DiabloScott:
Old 02-05-24, 06:47 AM
  #3179  
Freewheel Medic
 
pastorbobnlnh's Avatar
 
Join Date: Oct 2005
Location: An Island on the Coast of GA!
Posts: 12,847

Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)

Mentioned: 137 Post(s)
Tagged: 0 Thread(s)
Quoted: 1429 Post(s)
Liked 2,114 Times in 937 Posts
PSA: BikeINN, appears to have a comprehensive selection of tubular tires in stock, by most of the major manufacturers, at competitive prices, with many discounted.

I do realize (and not surprisingly) there are clincher tires mixed into this list which are labeled as "Tubular." Order cautiously. However, there are some great prices. For instance, this Maxxis Campione Tubular 700C x 23 Road Tyre, normally $169 for $44.
__________________
Bob
Enjoying the GA coast all year long!

Thanks for visiting my website: www.freewheelspa.com





pastorbobnlnh is offline  
Likes For pastorbobnlnh:
Old 02-05-24, 10:12 PM
  #3180  
Senior Member
 
Join Date: Aug 2020
Location: Saratoga, CA
Posts: 812

Bikes: 1981 Bianchi Specialissim, 1976 Colnago Super. 1971 Bob Jackson. 2012 Kestrel 4000. 2012 Willier. 2016 Fuji Cross 1.1

Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 272 Post(s)
Liked 903 Times in 372 Posts
Originally Posted by pastorbobnlnh
PSA: BikeINN, appears to have a comprehensive selection of tubular tires in stock, by most of the major manufacturers, at competitive prices, with many discounted.

I do realize (and not surprisingly) there are clincher tires mixed into this list which are labeled as "Tubular." Order cautiously. However, there are some great prices. For instance, this Maxxis Campione Tubular 700C x 23 Road Tyre, normally $169 for $44.
I bought some tires from them a year or two ago. Great price and fast delivery. they are one of the sites I go to when looking for deals.
SwimmerMike is offline  
Old 02-08-24, 09:19 PM
  #3181  
WGB
 
WGB's Avatar
 
Join Date: Jul 2017
Location: Niagara Region
Posts: 5,623

Bikes: Panasonic PT-4500

Mentioned: 44 Post(s)
Tagged: 0 Thread(s)
Quoted: 1776 Post(s)
Liked 2,290 Times in 1,354 Posts
Excel Sports has had some fine deals recently.

https://www.excelsports.com/vittoria...ular-road-tire

I got Continentals Competitions for the same price in the fall, $96 for 2

BEWARE OF SHIPPING! You have to have $99 for free shipping
WGB is offline  
Old 02-09-24, 07:04 PM
  #3182  
Senior Member
 
ascherer's Avatar
 
Join Date: Jul 2007
Location: Manhattan & Woodstock NY
Posts: 2,732

Bikes: 1987 Mercian Pro, 1985 Shogun 500, early '70s Falcon San Remo, 1972 Peugeot PX-10, 1972 Schwinn Paramount P13-9, 1971 Raleigh International, 1971 Peugeot PX-10, 1970 Raleigh Professional Mk1

Mentioned: 106 Post(s)
Tagged: 0 Thread(s)
Quoted: 914 Post(s)
Liked 2,755 Times in 941 Posts
Back to the future…found these in a small parts drawer and decided to mount them as I was doing some brake work. Hoping to finally get a proper ride on the Vittorias tomorrow. 58F in February in the Hudson Valley of New York, aka False Spring.


__________________
1987 Mercian Pro, 1985 Shogun 500, 197? Falcon San Remo, 1972 Peugeot PX-10, 1972 Schwinn Paramount P13-9, 1971 Peugeot PX-10, 1971 Raleigh International, 1970 Raleigh Professional Mark I
Curator/Team Mechanic: 2016 Dawes Streetfighter, 1984 Lotus Eclair, 1975 Motobecane Jubile Mixte, 1974 Raleigh Sports, 1973 Free Spirit Ted Williams, 1972 Raleigh Super Course, 1971 Philips Sport





ascherer is offline  
Old 02-10-24, 08:22 PM
  #3183  
Senior Member
 
ascherer's Avatar
 
Join Date: Jul 2007
Location: Manhattan & Woodstock NY
Posts: 2,732

Bikes: 1987 Mercian Pro, 1985 Shogun 500, early '70s Falcon San Remo, 1972 Peugeot PX-10, 1972 Schwinn Paramount P13-9, 1971 Raleigh International, 1971 Peugeot PX-10, 1970 Raleigh Professional Mk1

Mentioned: 106 Post(s)
Tagged: 0 Thread(s)
Quoted: 914 Post(s)
Liked 2,755 Times in 941 Posts

Made it out for 20 miles today, official first ride on tubulars in at least 40 30 years. Relevant data: I weigh about 190 lbs. and had the front at 90 and the rear at 100 psi. My impressions are positive, the Vittorias are smooth and supple, not a big gap between the Rene Herse and similar supple clinchers on my other bikes. These are 30s, and I run 33-36 on my other bikes except my Mercian which barely takes 28. Most of the roadways I rode are smooth, but one has a cracked surface and it wasn’t uncomfortable, all my teeth stayed in place!

I still experience that a quality of ride which I can’t characterize that distinguishes tubulars from even the better clinchers. Glad I have them.
__________________
1987 Mercian Pro, 1985 Shogun 500, 197? Falcon San Remo, 1972 Peugeot PX-10, 1972 Schwinn Paramount P13-9, 1971 Peugeot PX-10, 1971 Raleigh International, 1970 Raleigh Professional Mark I
Curator/Team Mechanic: 2016 Dawes Streetfighter, 1984 Lotus Eclair, 1975 Motobecane Jubile Mixte, 1974 Raleigh Sports, 1973 Free Spirit Ted Williams, 1972 Raleigh Super Course, 1971 Philips Sport






Last edited by ascherer; 02-11-24 at 10:29 AM. Reason: Typo = overtstating elapsed time
ascherer is offline  
Old 02-10-24, 09:02 PM
  #3184  
Senior Member
 
79pmooney's Avatar
 
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,731

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

Mentioned: 125 Post(s)
Tagged: 0 Thread(s)
Quoted: 4698 Post(s)
Liked 3,777 Times in 2,458 Posts
Originally Posted by ascherer

Made it out for 20 miles today, official first ride on tubulars in at least 40 years. Relevant data: I weigh about 190 lbs. and had the front at 90 and the rear at 100 psi. My impressions are positive, the Vittorias are smooth and supple, not a big gap between the Rene Herse and similar supple clinchers on my other bikes. These are 30s, and I run 33-36 on my other bikes except my Mercian which barely takes 28. Most of the roadways I rode are smooth, but one has a cracked surface and it wasn’t uncomfortable, all my teeth stayed in place!

I still experience that a quality of ride which I can’t characterize that distinguishes tubulars from even the better clinchers. Glad I have them.
I've been riding the clincher Vittoria Corsa G+ since they came out. The exact same tire, only stitched up and glued on is just nicer. Likewise, I cannot say why. And - you can go a size smaller without issue. Even two. And if you have to step down three sizes, nice tubulars start becoming the only decent ride. (Cycle Oregon on those tires, only in 25c front, a skinny 23c rear because I really wanted to do the ride on a 1983 race bike. 98 psi front, 110 rear. 150 pounds. Sweet!)

Actually I am pretty convinced that having all the air of the tire cross section between the rim and the road is just plain better.
79pmooney is offline  
Likes For 79pmooney:
Old 02-10-24, 09:48 PM
  #3185  
Senior Member
 
Join Date: Jun 2021
Posts: 1,802

Bikes: '38 Schwinn New World, ’69 Peugeot PX-10, '72 Peugeot PX-10, ‘7? Valgan, '78 Raleigh Comp GS, ’79 Holdsworth Pro, ’80 Peugeot TH-8 tandem, '87 Trek 400T, ‘7? Raleigh Sports, ‘7? Raleigh Superbe, ‘6? Hercules

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 749 Post(s)
Liked 1,501 Times in 733 Posts
Originally Posted by ascherer

Made it out for 20 miles today, official first ride on tubulars in at least 40 years.....all my teeth stayed in place!
..Glad I have them.
Boy, that is some shiny chrome goodness, there.
Appreciate the report! I picked up some of the same Vittorias from the sale a while back & have built up a set of tubular wheels to go on my Holdsworth and I'm really looking forward to giving 'em a try. Unfortunately, the Holds is currently stripped down and waiting for me to get my **** together and get it painted or powder-coated...
ehcoplex is online now  
Likes For ehcoplex:
Old 02-11-24, 08:15 AM
  #3186  
Freewheel Medic
 
pastorbobnlnh's Avatar
 
Join Date: Oct 2005
Location: An Island on the Coast of GA!
Posts: 12,847

Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)

Mentioned: 137 Post(s)
Tagged: 0 Thread(s)
Quoted: 1429 Post(s)
Liked 2,114 Times in 937 Posts
...and ascherer just look how neat a taped tubular looks! Glad to hear how satisfied you are with the Vittoria tires.
__________________
Bob
Enjoying the GA coast all year long!

Thanks for visiting my website: www.freewheelspa.com





pastorbobnlnh is offline  
Likes For pastorbobnlnh:
Old 02-11-24, 09:37 AM
  #3187  
Senior Member
 
SJX426's Avatar
 
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,553

Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8

Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 1596 Post(s)
Liked 2,178 Times in 1,084 Posts
@ascherer - I love all of mine, both tubular and clincher. Try a higher pressure and see what you think. I run mine at 125/130 for 23 and 25's. They feel more sure on the road.
You may want to reverse the front tire scraper to match the rotation direction.
Bianchi1971IntegratedHeadset on Flickr
__________________
Bikes don't stand alone. They are two tired.
SJX426 is offline  
Likes For SJX426:
Old 02-11-24, 09:57 AM
  #3188  
Senior Member
 
Classtime's Avatar
 
Join Date: Jan 2015
Location: Los Angeles
Posts: 4,639

Bikes: 82 Medici, 2011 Richard Sachs, 2011 Milwaukee Road

Mentioned: 52 Post(s)
Tagged: 0 Thread(s)
Quoted: 1908 Post(s)
Liked 1,921 Times in 1,068 Posts
106 miles yesterday on my glued 22mm Sprinters and Ambrosio Nemesis.
__________________
I don't do: disks, tubeless, e-shifting, or bead head nymphs.
Classtime is offline  
Old 02-17-24, 11:35 AM
  #3189  
Senior Member
 
Classtime's Avatar
 
Join Date: Jan 2015
Location: Los Angeles
Posts: 4,639

Bikes: 82 Medici, 2011 Richard Sachs, 2011 Milwaukee Road

Mentioned: 52 Post(s)
Tagged: 0 Thread(s)
Quoted: 1908 Post(s)
Liked 1,921 Times in 1,068 Posts
I keep two tubular wheel sets ready to go: a free hub 130mm set and a FW 126mm set. This morning I moved the 25mm Sprinter Gatorskins from one wheel set to the other after I took off its 22mm Sprinters. And moved the Sprinters to the wheels that had the GS. Took about 1hour. Fresh glue on 4 rims with nicely stretched Continentals—easy peasy.
__________________
I don't do: disks, tubeless, e-shifting, or bead head nymphs.
Classtime is offline  
Old 02-26-24, 04:28 PM
  #3190  
Senior Member
 
gaucho777's Avatar
 
Join Date: Aug 2009
Location: Berkeley, CA
Posts: 7,429

Bikes: '72 Cilo Pacer, '72 Gitane Gran Tourisme, '72 Peugeot PX10, '73 Speedwell Ti, '74 Peugeot UE-8, '75 Peugeot PR-10L, '80 Colnago Super, '85 De Rosa Pro, '86 Look Equipe 753, '86 Look KG86, '89 Parkpre Team, '90 Parkpre Team MTB, '90 Merlin

Mentioned: 87 Post(s)
Tagged: 0 Thread(s)
Quoted: 818 Post(s)
Liked 1,998 Times in 537 Posts
Totally tubular beer.

gaucho777 is offline  
Likes For gaucho777:
Old 02-26-24, 04:43 PM
  #3191  
Senior Member
 
79pmooney's Avatar
 
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,731

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

Mentioned: 125 Post(s)
Tagged: 0 Thread(s)
Quoted: 4698 Post(s)
Liked 3,777 Times in 2,458 Posts
Originally Posted by ascherer

...
Originally Posted by SJX426
@ascherer - I love all of mine, both tubular and clincher. Try a higher pressure and see what you think. I run mine at 125/130 for 23 and 25's. They feel more sure on the road.
You may want to reverse the front tire scraper to match the rotation direction.
Bianchi1971IntegratedHeadset on Flickr
Yes, running the tire scraper facing forward as SJX426;23153743 does both means less happens when a twig follows the tire and the grit, oily water, etc. brushed off blows forward and away from your brakes and headset. Yes there is blow back but that's maybe 10% of the total brushed off instead of more like half. Your glasses won't do as well on those fast descents with your chin racer style on the handlebars on wet days so there is that.
79pmooney is offline  
Likes For 79pmooney:
Old 02-28-24, 07:34 AM
  #3192  
Freewheel Medic
 
pastorbobnlnh's Avatar
 
Join Date: Oct 2005
Location: An Island on the Coast of GA!
Posts: 12,847

Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)

Mentioned: 137 Post(s)
Tagged: 0 Thread(s)
Quoted: 1429 Post(s)
Liked 2,114 Times in 937 Posts
A Very Slow Tubular Leak Question:

I know this is about to curse my good fortune, but since first mounting and riding tubulars in 2015, I've never flatted my tubulars. I don't use sealant because I tend to let a bike sit for a long time before rotating it into use. I ruined two very nice Vittoria Course tubulars that I did add sealant to because it ran to the bottom and hardened (expensive lesson learned).

My '71 Paramount P13 has been wearing a set of Schwalbe One tubes since 2015, and the rear tire has developed a very slow leak. It will drop from 100psi to 80psi in about 3 hours and will be flat in about 12-15 hours. I can't find anything puncturing the tire. I've not bothered to remove the wheel and place in water to locate the leak. I cannot hear the air leaking.

The tire in question is beginning to show its age. A few cuts and scrapes on the side wall. Thinning in the center of the tread with a few nicks and cracks here and there.

Looking for some collective advice as to how to proceed:
  1. Add sealant and see if it stops the leak and ride?
  2. Use this as an opportunity to look for the leak and patch my first tubular?
  3. Celebrate the nine years of flat-free riding and mount a new set of Schwalbe Ones (I bought an extra set a while back)?
  4. Other options?
And, since we like pictures, here it is back in 2015, shortly after they were first mounted.
__________________
Bob
Enjoying the GA coast all year long!

Thanks for visiting my website: www.freewheelspa.com





pastorbobnlnh is offline  
Likes For pastorbobnlnh:
Old 02-28-24, 09:02 AM
  #3193  
Full Member
 
Join Date: Jan 2023
Posts: 467

Bikes: Two Peter Mooney customs, a 1980 Trek 510 townie, a Marin Stelvio set up for TTs.

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 222 Post(s)
Liked 287 Times in 158 Posts
I would use some soapy water and try to determine the region of the leak. I would put in an ounce or so of Stan's, blow up the tire and give the wheel a good spin. I suspect that sort of slow leak will seal easily. Also, first be sure to look around the tire for flints. If the tire is retaining any glass, that slow leak might just get a bit faster, so you want to take the opportunity to remove any injuring objects from the tread.

Something also to bear in mind, that soapy water test might indicate a leaky valve stem, so you should check the core to be sure there's no garbage embedded there.

Last edited by MooneyBloke; 03-01-24 at 11:47 AM.
MooneyBloke is offline  
Old 02-28-24, 09:05 AM
  #3194  
Full Member
 
Join Date: Jan 2023
Posts: 467

Bikes: Two Peter Mooney customs, a 1980 Trek 510 townie, a Marin Stelvio set up for TTs.

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 222 Post(s)
Liked 287 Times in 158 Posts
Originally Posted by gaucho777
Totally tubular beer.

If it weren't for the distance (CA's a jaunt from MI), I'd get a few sixes for my LBS just as a sew-up joke.
MooneyBloke is offline  
Old 02-28-24, 09:24 AM
  #3195  
Senior Member
 
Join Date: Dec 2015
Location: San Diego
Posts: 704

Bikes: 1978 Bruce Gordon, 1977 Lippy, 199? Lippy tandem, Bike Friday NWT, 1982 Trek 720, 2012 Rivendell Atlantis, 1983 Bianchi Specialissima?

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 344 Post(s)
Liked 169 Times in 104 Posts
Originally Posted by pastorbobnlnh
A Very Slow Tubular Leak Question:

I know this is about to curse my good fortune, but since first mounting and riding tubulars in 2015, I've never flatted my tubulars. I don't use sealant because I tend to let a bike sit for a long time before rotating it into use. I ruined two very nice Vittoria Course tubulars that I did add sealant to because it ran to the bottom and hardened (expensive lesson learned).

My '71 Paramount P13 has been wearing a set of Schwalbe One tubes since 2015, and the rear tire has developed a very slow leak. It will drop from 100psi to 80psi in about 3 hours and will be flat in about 12-15 hours. I can't find anything puncturing the tire. I've not bothered to remove the wheel and place in water to locate the leak. I cannot hear the air leaking.

The tire in question is beginning to show its age. A few cuts and scrapes on the side wall. Thinning in the center of the tread with a few nicks and cracks here and there.

Looking for some collective advice as to how to proceed:
  1. Add sealant and see if it stops the leak and ride?
  2. Use this as an opportunity to look for the leak and patch my first tubular?
  3. Celebrate the nine years of flat-free riding and mount a new set of Schwalbe Ones (I bought an extra set a while back)?
  4. Other options?
And, since we like pictures, here it is back in 2015, shortly after they were first mounted.
First, make sure the valve core is tight. If that doesn't do it, sealant. I've not had good luck locating a puncture by putting tire in water as the bubbles are really only indicating where the air is escaping from the casing and that may not coincide with where it is escaping the tube.
L134 is offline  
Old 02-28-24, 10:53 AM
  #3196  
Freewheel Medic
 
pastorbobnlnh's Avatar
 
Join Date: Oct 2005
Location: An Island on the Coast of GA!
Posts: 12,847

Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)

Mentioned: 137 Post(s)
Tagged: 0 Thread(s)
Quoted: 1429 Post(s)
Liked 2,114 Times in 937 Posts
Originally Posted by L134
First, make sure the valve core is tight. If that doesn't do it, sealant. I've not had good luck locating a puncture by putting tire in water as the bubbles are really only indicating where the air is escaping from the casing and that may not coincide with where it is escaping the tube.
Great suggestion to check the valve core. I did so and it did tighten another full turn. I've pumped it back to 100psi and will check pressure later today.
__________________
Bob
Enjoying the GA coast all year long!

Thanks for visiting my website: www.freewheelspa.com





pastorbobnlnh is offline  
Likes For pastorbobnlnh:
Old 02-28-24, 11:20 AM
  #3197  
Making up the numbers
 
seagrade's Avatar
 
Join Date: Jun 2022
Posts: 252
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 92 Post(s)
Liked 414 Times in 133 Posts
Originally Posted by pastorbobnlnh
A Very Slow Tubular Leak Question:
  1. Use this as an opportunity to look for the leak and patch my first tubular?
Kia ora pastorbobnlnh ! Having seen many and varied examples of your craftsmanship in these pages, and even one first hand, I’m shocked you haven’t yet attempted tubular tyre repair. I think you’d end up making your own modern-day Clement Campionato del Mondos before long! Endorsing other replies though, I’d wait for a tubular with a clear leak through a small cut in the tread or embedded glass fragment so be sure the corresponding tube leak is easily located. Beware air escaping at the valve base, I’ve chased that some distance along the stitching to find the actual leak and been left with a lot of restitching to do…

Fantastic-looking Paramount by the way. Normally I wouldn’t requote a photograph but decided to make an exception this case!
__________________
Nothing quite says wall hanger like drillium toe straps
seagrade is offline  
Likes For seagrade:
Old 02-28-24, 11:33 AM
  #3198  
Senior Member
 
SJX426's Avatar
 
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,553

Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8

Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 1596 Post(s)
Liked 2,178 Times in 1,084 Posts
Stick it in water to find the leak. Although I haven't seen a leaky stem, it is worth checking out.
i have seen some slow leaks from punctures that required digging in the tread. Here is an example:
DeRosaVitGFlatGlass on Flickr

I have three tubes in the queue for repair.
I won't use sealant for the very same reasons you have experienced.
__________________
Bikes don't stand alone. They are two tired.
SJX426 is offline  
Likes For SJX426:
Old 02-28-24, 01:42 PM
  #3199  
It's MY mountain
 
DiabloScott's Avatar
 
Join Date: Sep 2006
Location: Mt.Diablo
Posts: 9,979

Bikes: Klein, Merckx, Trek

Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
Quoted: 4274 Post(s)
Liked 2,912 Times in 1,576 Posts
Originally Posted by pastorbobnlnh
A Very Slow Tubular Leak Question:

I know this is about to curse my good fortune, but since first mounting and riding tubulars in 2015, I've never flatted my tubulars. I don't use sealant because I tend to let a bike sit for a long time before rotating it into use. I ruined two very nice Vittoria Course tubulars that I did add sealant to because it ran to the bottom and hardened (expensive lesson learned).

Looking for some collective advice as to how to proceed:
  1. Add sealant and see if it stops the leak and ride?
  2. Use this as an opportunity to look for the leak and patch my first tubular?
Fortunately, I don't get many flats either - but more than zero.
1. I suck at sew-up patching. I'm glad I tried a half-dozen times, and I know the process, but too much work for too small of a chance of success.
2. I generally don't use prophylactic sealant, but if I have a small puncture on a good tire, I'll try the sealant to see if it'll hold - and it does often enough and well enough to justify the attempt and make the tire last a lot longer.
DiabloScott is offline  
Likes For DiabloScott:
Old 02-29-24, 07:17 AM
  #3200  
Freewheel Medic
 
pastorbobnlnh's Avatar
 
Join Date: Oct 2005
Location: An Island on the Coast of GA!
Posts: 12,847

Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)

Mentioned: 137 Post(s)
Tagged: 0 Thread(s)
Quoted: 1429 Post(s)
Liked 2,114 Times in 937 Posts
Originally Posted by pastorbobnlnh
Great suggestion to check the valve core. I did so and it did tighten another full turn. I've pumped it back to 100psi and will check pressure later today.
I just checked the pressure after a 20 hour wait. It dropped from 100psi to just below 20psi. So not the valve core.

I'll try to find time today to pull the wheel off, dunk in water to see if a leak is detectable and will add sealant. The current condition of the tread and sidewall doesn't merit a full-blown repair. This tire has given me nine years of use with no issues until now. Tubular life is good!
__________________
Bob
Enjoying the GA coast all year long!

Thanks for visiting my website: www.freewheelspa.com





pastorbobnlnh is offline  
Likes For pastorbobnlnh:

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.