Unfortunately, I cannot answer your question, though I thought I researched latex tubes, but don't hold me to that.

I am curious, did the 28 measure at 28? I'm considering getting a pair, but am worried about clearance.

I don't know the answer but they deflate a good deal overnight. Probably 90 psi down to 70 psi. I've had latex that lost more but I am pretty certain the Gs aren't butyl. (Haven't opened one up yet.) The Veloflexes I'm riding on one bike loose about twice as much air. Pretty sure those are straight up, fairly thin latex. The Gs might be a thicker latex.

Don't know. They aren't mounted on rims. I haven't even removed the hang tags yet. I only inflated them to 30psi to make sure there were no obvious defects.

I haven't mounted the 28's yet either. But I have some 30's mounted that I just measured at about 29.2.

Indeed. I may find myself taking advantage of this. I am having a spate of horrid luck. Yesterday, I plugged a slow leak in my front with Stans, and today I was resigned to twenty miles of gusty headwind for the first half of my ride, and suddenly at about 3km out PSSSSS!!!!! I figured my sealant hadn't done the job, but no!!!!! It was a relatively new Veloflex on the rear rear that got eaten by something. I didn't glue it that long ago, the
Conti glue on the rim still has some tackiness, and I still have the piece of paper that comes stuck over the valve stem. Right now, I have the tire patched and waiting for sewing, but I had hoped to get at least a few hundred more miles on it before I had to do this, and I have no fresh sew-ups at this point. That flat was one of the last two.

I was getting low after a similar experience where I flatted 3 tubulars in a week. My experience is that I won't even try Stan's if I here the infamous PSSSSS. If I slowly lose air, I found the Stan's is great, but if it is a quick release I have only had luck in making a mess, not in actually being able to ride. I was planning on stocking up on some Rally's to "hold me over" then when I saw this deal I went all-in.

Agree. That's why I have the patient open and patched and awaiting the needle. Stan's might get me home without needing a roadside change if I get that sort of puncture, but it won't hold the 6.9bar front and 7.6bar rear that I run in my 23s. So now, both the front and rear tires on that wheel set have little blue Sharpie marks (another good reason for gum sidewalls) indicating leak locations. Chafing tape's back in place, so now let's see if I can get this beast stitched back together without making it horridly lumpy.

I just had to open up one of my 25's and the tube is latex. Sidewall cut after only 41 miles. Hope it is just the luck of the draw. Will relegate to spare duty.

Got the beast (Veloflex Crit) sewn back together and glued on; it seems like it's not lumpy. No idea whether the tire gremlins will smile on the effort or not.

Edit the next day: sadly, the tire gremlins were angry at my hubris, and I'm home, but I'm out one CO2 cartridge. Don't know if it's a new hole or a patch failure. I'm just happy, the nasty spare from under the seat didn't go pop on the way back.

Dumb question time: at what point do you strip the old glue from your rims?

Had a front flat yesterday (Vittoria Rubino Pro G+ 28mm).
The wheel was bent in a collision 1 month back, but I thought the tyre was OK (I rebuilt the wheel after the forks were fixed).

Tried the frame pump, then walked it home (1 mile).
Installed more Orange Seal and flat gone :)

The Orange Seal was the same bottle I used 13 months (and about 2k miles) back when I first discovered sealant.
I think I lost some fluid while fixing the wheel, or I've had several punctures I didn't notice,
either way I'm quite impressed with sealant :)

I'm certain there are many opinions about glue removal. Since I use tape, I always start with a clean rim.

I rode Tubasti forever. (Race wheels got glues with the hard stuff. Vitoria or Clement.) My policy was to not strip the glue unless it was obviously sticking better to the tire than the rim. I worried more about the rim-glue connection than the glue-tire connection. First glue job to a bare aluminum rim is the one I always trusted the least. I don't feel secure until it has taken real work to separated the tire from the bedded glue.

I said this in past tense. I'm back to tubulars and Tubasti after 25 years off. (First run was about 25 years.) So all my wheels are pretty new without great glue bases and I don't yet have the confidence to fully bomb corners. (I'm also 70 now so there's that also.)

I can understand, but it gets to a point where the base is quite visibly thick and has picked up junk from the times the rim has been tire-less. At our age, I think criterium corners are wisely a thing of the past regardless of glue job. There are plenty of other ways to wash out besides rolling a tire.

So yesterday, I wound up stripping the rear. I miss the old dichloromethane strippers that would quickly turn any sew-up glue into easily removed snot. Evidently, someone asphyxiated himself by using one in an enclosed space to strip a piece of furniture, so the only strippers now available do a mediocre job of loosening the mastic, and one needs to do several attempts. Now the thing is stripped, wiped down with acetone, and reglued.

Sadly, the victim (tire) had to be opened three times. After the first patch, I heard a snick I though was a twig only to have my tire go soft at eight miles down the road. Happily my spare and CO2 cartridge came to the rescue, and the spare despite rubbing up against the saddle rails held until I got home. So open the beast and replace the patch. Once again I heard the snick when I went out to see how lumpy my stitching was. Damn! Open and look carefully at the patch (1 sq-in latex bit), and there's a hole in the patch at the same place the original puncture occurred. I look carefully at the injury to the casing, and I think there are three or four threads cut, and I think there's just enough room for a latex tube to stretch out and pop when the tire flexes. Now, as an experiment, there's a 1 sq-in piece of duck cloth (boot) glued to the casing with E6000, and a third patch has been applied, and I think there's just enough bulk that the tube can't push out through the cut. No snick so far, but I'm a bit leery about how far this thing can roll. The tire seems no more lumpy than after my second attempt. I think the thing is to examine casing injuries, and assume that a small boot may be needed if more than a couple of threads are cut. I suspect a butyl tube would not have this issue.

Tire with the duck cloth boot and patch survived 67Km today. Yes... a bit lumpy, but it did better than I expected. Examination of the exterior suggests the boot didn't protrude at all, and that was my main worry. I had filled the cut with E6000 (stretchy rubbery urethane adhesive), and even that seems to have stayed put.

I came to read some of this thread, starting at the end, thinking I might just try tubulars again.

NOPE!

You convinced me not to, by reminding me of all the troubles I once had with them and how happy I was to eventually get some high performance clincher tires.

What was I thinking? I do not mean this as a put down, just my reaction to the posts. I selected MooneyBloke's post as representative of the cause of my reaction..

Enjoy riding whatever tires you care to use.

I switched back after 20+ years on clinchers. Started adding 2oz of Orange Seal per tire (I buy the Stan's 20z bottle, use and refill with Orange Seal). My flat rate has gone down to close to zero. At this rate, I can afford to send the dead ones to the guy in CA and have him replace the tubes on ones he feels are worth it.

My driving reason is that I had an older clincher blow, come off and jam in the seatstay. At less than 25 mph. Broken collarbone, ribs and a couple of acres of road rash. Haven't fully enjoyed a fast downhill since until I went back to the sewups that I used to ride to a stop after blowouts from 45 and it wasn't a big deal. (Well, I ride sewups better than my old $18 training tires. No longer a poor racer.)

I think you drew the wrong conclusion from my sermon. This was indeed the worst situation I've had with sew-ups in decades of riding them. It really boils down to doing a sloppy repair and paying a price for it. If I had carefully examined the interior of the casing when I had the tire apart initially, I might have applied a boot as I did eventually. (Two rides later, and that boot still survives. Still feels a bit lumpy on smooth pavement.) Also, with sealants like Stan's and strong waterproof boot adhesives such as E6000, repair and avoidance thereof are far easier than they were in the early eighties when I started. It is also important to bear in mind that the tire of which I wrote was a Veloflex Criterium. This was a light road racing tire, and there are sturdier sew-ups out there. I might add that having four sets of sew-up wheels, I'm somewhat committed.

I'm not here to tell you what to ride, but I'm sure there are plenty of sob stories no matter what sort of tire ridden, 79pmooney's clincher crash story as one example.

Good post! And some of the new tubulars are of quality and reliability I don't recall from my decades of big miles tubular only riding. The Vittoria Corsas. Most of my past year has been on 25c and 28c G+. Few flats and snce I started adding 2 oz of latex, almost none. (First Bontranger from the Cycle Oregon mechanics after acquiring goatheads in central Washington, then Orange Seal added later. I buy the Stan's 2 oz bottles to carry on rides and just refill them from an Orange Seal bottle. As far as I can tell, the imxing of brands matters zero.

I am a big fan of Vittoria's various "G" tires. That graphene appears to make for a simply better tread. Been riding their (confusing!) Open clinchers for a few years and am really happy to report the tubulars are all of that quality, ride and reliability along with good, even stitching and well glued tape. Joys to mount and ride.

I actually wanted to post just because yesterday I went for a random fix gear ride on my Mooney, leaving with the mountain gears on. (Low gear from 2017 when I was considerably younger and stronger.) 46-14, a nice downhill gear, the ubiquitous 42-17 flat ground gear and 36-21 uphill. Decided to try McCormick Hill Road. Well, it became obvious I don't have the miles and fix gear strength to get to Mountaintop Road and Bald Peak so I stopped 2/3rds of the way up, admired the view, but it in high gear and sailed down. (Keeping it sane; the hill ends with a well into double digit blind off camber turn.) Did another 30 miles, foirst nursing the bike and body over several bumps in the big gear to have that fun roll on the other side, then back to the 42-17 and cruise.

All on the same 28c G+ tires I rode Cycle Oregon on last fall. The ribs are gone from the center of the rear tire, they weigh a little more with that latex but they still run as sweet as you could ask. Didn't note the pressure when I pumped them up but probably 88 +- 2 to 3 (I run rears 5-6 psi higher in back). Ahh! The magic carpets! And on a sweet beast in the tradition of a classic English road bike. (Well not totally classic. The brakes were unusually clean. I usually pay no attention to them but yesterday that front sparked in the sun and I kept getting reminded what great stoppers they are. (Shimano cantis that were stock on one year of Miyata 610s. So nice I swapped out the original Mafacs for them. Yesterday they got to do their work.)

So good to be back on the magic carpets (Are they still hand stitched by Persians Asians like they were 1000 years ago?)

It sounds like things are going better in Thailand than when I bought a few Vitt CX tires. I remember the tires occasionally rather lumpy, and the Vitt tubes actually being thinner and smaller, and the base tape being nearly impossible to remove without tearing. It seems as if they've cleaned up their act considerably in the last couple of decades. Even those were far better than the tires I rode in my youth. I still have a couple of ugly orange Conti Sprinters I keep around 'cos they still hold air.

Even the low end Vittoria Rally tubulars roll smooth and straight these days.

I recall reading that Vittoria owns their factory in Thailand and have complete control. I suspect the early days of the operation were rocky just based on what I know of Americans who went to Taiwan to have boats made of their design. Real culture shock and adjustment for both sides. Those who were willing to be patient and learn how to work with the very different culture had excellent boats made. Those who didn't - well those boats kept the stereotype of cheap Asian boats intact.

I didn't know what was happening at the time but I remember the days when Vittoria was struggling with good, uniform beads on their green tread clinchers, a tire I loved as all weather commuters until the bad bead days. Seems those days are now long gone and that factory is now turning out some of the best tires there are. Haven't hit a bad Vitt tubular yet.

And exactly 1 week later a rear flat in almost exactly the same situation.

Found some 'latex' on the rear brake bridge and the back of the saddle bag, so something squirted out and didn't seal.
Had to order more Orange Seal (Endurance), so I've just put 1oz of new Orange Seal in the rear and it's still hard after 1 hour :)
But no sign of squirting and can't see where the leak was.

1st installed: about 1.5oz 23/05/2022
1st replacement: 1oz 29/06/2023

My conclusion: 1oz Orange Seal lasts about 1year in my tyres, and longer on the shelf in a bottle. It may be fixing quite a lot of punctures.
I think the Orange Seal instructions say add 1oz every 4 months.

For newbies:
Just be aware -- If you put sealant in tires that are used seasonally or only rarely for special occasions, the sealant will dry into a clump in the tube. It happened with my CX race day tires and my Eroica Bike. It is not a big deal but the idea is not to ride lumpy tires.

Glue hardened a bit in the can.

I had been pre stretching a set of tires for three days and went just now to glue first coat.

Glue isn't hard but it's not going on the brush.
I remember years ago I had the same problem and someone said to add something to soften the glue. I can't recall if it was a dash of acetone or alcohol. It worked perfectly back then.

I can't simply run out and buy more as no one here carries it.

Any ideas?

Acetone? Lennard Zinn on the subject:

https://velo.outsideonline.com/road/...-tubular-glue/

The topic is about removing glue from rims, but I presume acetone would also work to thin old glue. Try a bit and see.

I understand that Hexane would work the best. I also read that it is not likely that thinning will return the Mastik to original effectiveness. I always store my can upside down but I am down to 1/3 of a can and should probably get a new can.

If I believe the old can of Conti glue I have, cyclohexane (along with petroleum benzine) was the solvent for their glue. I'm hesitant to try other things though. Thinning the glue between the rim and the base tape is one thing, but having the solvent attack the base tape to carcass bond (usually latex emulsion on fine cotton tires) is a worry that I'd rather not have.

I'm a Believer: Clement Scatto Servizio Corse
 

Over a year ago I picked up a new pair of Clement Scatto Servizio Corse tubulars for a great price. I don't remember specifically what I paid, but I'm certain it was less than $50 per tire. I've not measured the width, but I'm guessing about 23-24mm.
https://cimg9.ibsrv.net/gimg/bikefor...8374fa5008.jpg

About a week ago I tape mounted them on a new set of wheels I bought this spring. Subsequently I placed the wheels on my Schwinn 974 which was receiving maintenance at the time. Today I took it for a ride on the new Clements.

These have to be the smoothest, most supple, and fastest tires I have ever ridden. The ride was 28 miles. About 20% was on chip-seal, 40% smooth asphalt, and 40% concrete bike-path (with joints every 6 feet). I was very pleased regardless of the riding surface.

​​​​​​I've been riding this bike regularly lately, so I'll update on how they wear.

I just had to take and post this picture.
https://cimg0.ibsrv.net/gimg/bikefor...9aa58c4982.jpg
Yep! I rode around Clement Circle on my new Clement tubulars. BTW, this is on a regular route but I never paid much attention to the street name. :p