Totally Tubular
02-29-24, 09:08 AM
#3201
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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!
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!
02-29-24, 11:46 PM
#3202
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Couldn’t possibly use anything other than an Italian-made engraver/scriber for keying the tyre bed of my Record Pave rims. Always scribed parallel lines on new rims back in the 80s/90s and never should have neglected that step last year when sandpaper didn’t scratch the surface…
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03-01-24, 06:56 AM
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^The Horror!
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I don't do: disks, tubeless, e-shifting, or bead head nymphs.
I don't do: disks, tubeless, e-shifting, or bead head nymphs.
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03-01-24, 08:32 AM
#3204
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Final report on my very slow leaking Schwalbe One tubular:
Sealant took care of the leak.
The tire was still holding at 100psi this morning after adding Effetto Mariposa Caffelatex sealant yesterday morning and pumping to the same. Now I just have to ride the Paramount every week to keep the sealant from pooling at the bottom and hardening.
Sealant took care of the leak.
The tire was still holding at 100psi this morning after adding Effetto Mariposa Caffelatex sealant yesterday morning and pumping to the same. Now I just have to ride the Paramount every week to keep the sealant from pooling at the bottom and hardening.
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03-01-24, 11:51 AM
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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.
Last edited by MooneyBloke; 03-01-24 at 04:50 PM.
03-01-24, 11:54 AM
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A small vessel of water and dish soap is even better I think. You brush it on generously, and where the air escapes, there is a large and obvious bubble.
03-01-24, 04:13 PM
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Interesting. In four decades on sew-ups both garbage and excellent, I've never seen a displaced bubbles if the tire is in good shape. The path of least resistance is through the puncture or at least very close. I do pinch the tire to look for tread cuts in the area to be doubly sure though.
03-04-24, 06:35 PM
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Interesting. In four decades on sew-ups both garbage and excellent, I've never seen displaced bubbles if the tire is in good shape. The path of least resistance is through the puncture or at least very close. I do pinch the tire to look for tread cuts in the area to be doubly sure though.
03-04-24, 09:02 PM
#3210
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I've been riding tubulars since the 80s and I have also experienced what @L134 is describing. Not often, but more than a couple times. I have submerged a tubular to find small bubbles emanating from a general area of the sidewall (say a few inches long),
Valve hole bubbling might indeed be displaced, but when I've had that, it was leading to an irreparable failure of the stem on some Vitt CXes.
03-06-24, 09:47 AM
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A dried out casing may indeed give a false indication, but I try to touch up areas like that with latex emulsion because the bare casing is more prone to abrasion damage. In any case, pinching the tread around the bubbles should give you an idea where the damage lies.
Brent
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03-06-24, 10:34 AM
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Please share your source for liquid latex. In decades gone by I used the Jevelot product which came in a small jar that was good for many applications. Alas, Jevelot and Hugh Enochs are no more. I'd appreciate any lead on a substitute. I tried using tire sealant but it didn't adhere as well as my memory of the Jevelot product.
Brent
Brent
I also use this to stick the base tape back down after restitching cotton sew-ups. The main issue with either of these is the rather short shelf life once opened; in my experience, the rubber tends to fall out of suspension over time. Evidently carpet layers use some sort of latex emulsion as well, but I've not had any experience here. If you investigate this and can let me know of a good brand, I'd be very interested especially if it's cheaper than the Tear Mender.
Let me state loudly that I've never found a good base tape repair adhesive for Conti Sprinters. Those seem to be a one-and-done tire unless you like riding on dicey base tape.
Last edited by MooneyBloke; 03-06-24 at 10:44 AM.
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03-06-24, 05:31 PM
#3213
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I finally had a chance to test-ride my sealant filled Schwalbe One tubular. 20 miles and no air loss! The ride also gave me a chance to check the road worthiness of the leather handlebar bag I just completed. More on the new bag can be found in the DIY Bag thread.
As mounted on my '71 P13 Paramount with other leather projects.
As mounted on my '71 P13 Paramount with other leather projects.
03-06-24, 06:56 PM
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03-07-24, 08:42 AM
#3216
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Please share your source for liquid latex. In decades gone by I used the Jevelot product which came in a small jar that was good for many applications. Alas, Jevelot and Hugh Enochs are no more. I'd appreciate any lead on a substitute. I tried using tire sealant but it didn't adhere as well as my memory of the Jevelot product.
Brent
Brent
https://www.amazon.com/Liquid-Latex-...r_1_18?sr=8-18
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03-07-24, 05:38 PM
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I suspect theatrical makeup latex would bit a bit too thick much like mold makers latex.
03-07-24, 06:38 PM
#3218
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Hey, sorry, this question is probably answered somewhere in this long thread, but are 22-23mm silk tubular tires with latex inner tubes for the road still being made? I’m in the US. Thanks in advance.
Last edited by Biker Pete; 03-07-24 at 07:17 PM.
03-07-24, 08:39 PM
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https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
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03-08-24, 07:43 AM
#3220
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Available direct from FMB in France…
https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
03-12-24, 12:56 PM
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(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
03-13-24, 04:55 PM
#3222
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rene herse has fmb https://www.renehersecycles.com/shop...-700c-x-23-mm/
03-23-24, 02:36 PM
#3223
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Available direct from FMB in France…
https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
Last edited by Biker Pete; 03-31-24 at 07:24 AM.
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03-31-24, 07:31 AM
#3224
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Available direct from FMB in France…
https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
https://fm-boyaux.cc/en/route/28-82-.../36-largeur-22
No affiliation.
03-31-24, 02:11 PM
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Just the tread?
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I don't do: disks, tubeless, e-shifting, or bead head nymphs.
I don't do: disks, tubeless, e-shifting, or bead head nymphs.