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

Aardwolf 10-16-22 12:20 AM


Originally Posted by cxwrench (Post 22680546)
If you don't over-inflate them. 85 in that tire is about the same as 100 in a 23mm tire. I weigh about 165 and would inflated a 28 tubular between 60-70.

I'm using the Silca Pro tyre pressure calculator https://silca.cc/pages/sppc-form
Mainly because it has a setting for surface conditions which includes "worn pavement / some cracks" which I'm guessing is about right for London streets.
I also tried 3 others and it roughly agrees.

I'm 192 lbs which gives 74/76 psi.

oneclick 10-16-22 04:45 AM

Glue source in Canada?
 
I'll need a can or a box of tubes, for a can the lbs is order-and-wait; might as well price check...

dukeofearl 10-16-22 03:20 PM


Originally Posted by Aardwolf (Post 22680388)
I'm using Mavic Monthlery Route (21.5mm) rims, I've put Vittoria Rubino Pro G+ 28mm on them.
Works fine and they're 28mm at 75 psi, I've done about 1k miles on them (with Orange Seal in them).
In theory 28mm gives a softer ride on city streets.

They are £35 at Merlin Cycles (UK): https://www.merlincycles.com/vittori...0c-140868.html

Edit: I'm using Tufo tape, haven't tried glue yet (15 months on tubulars).

thanks these look pretty good and total comes to about $100 with us shipping. will have to research orange seal...

Aardwolf 10-16-22 03:26 PM

I got a glass shard (about 1.5mm) in the front wheel after 100 miles, totally flat.
Did some research and then put some Orange Seal in it, spun the wheel and sealed in about 2 secs.
Been perfect since then.

Edit: Found the research
https://www.slowtwitch.com/Products/...rt_1_4147.html
https://www.slowtwitch.com/Products/...rt_2_4155.html

Classtime 10-16-22 04:45 PM

Nice to seal a 1.5mm slice. What pressure is holding while you ride? I might have to switch from Stan’s. Although my Stan’s is pretty old.

Aardwolf 10-16-22 04:48 PM


Originally Posted by Classtime (Post 22681450)
Nice to seal a 1.5mm slice. What pressure is holding while you ride? I might have to switch from Stanís. Although my Stanís is pretty old.

I'm running at 74psi in the front tyre.

SJX426 10-18-22 12:10 PM

@squirtdad - Have you laced up the Nemisis? I have a pair on the De Rosa. They have a good history even though they are a bit heavy at 430g.
Currently price reduced from 97 to 85 Euros. Tempting to have a back up but will likely use GL 330s (several pair) which are hanging in the garage.

squirtdad 10-18-22 12:46 PM


Originally Posted by SJX426 (Post 22683516)
@squirtdad - Have you laced up the Nemisis? I have a pair on the De Rosa. They have a good history even though they are a bit heavy at 430g.
Currently price reduced from 97 to 85 Euros. Tempting to have a back up but will likely use GL 330s (several pair) which are hanging in the garage.

I have laced the front wheel, but not tensioned, trued. So far the rim seems really true....... just laced up and nipples tightened so threads don't show and it is true :)

I am have not built a lot of wheels, so this is more a get over my past less than perfect builds. Will post when done

I am at 225, down from 245 so a strong rim seemed right and who can resist the la Reine du Nord, https://www.velonews.com/news/road/a...rosio-nemesis/

EVlove 10-18-22 05:45 PM

I went to my local coop for the first time today to donate a couple of bikes and was allowed to dig through the pile of road bike wheels way in the back. Score! An almost matched pair of very grubby looking wheels, no markings on either rim, nor on the rear hub, but the front hub was a Campy Record with matching skewer. They had a Campy-hubbed rear, as well, but it was 120mm. Also picked up a 27x1-1/4 rear for the Dawes ("how many of those can I send you home with?") and basically had to force them to accept a $20 donation for the three wheels.

One of the younger mechanics did give me the "anybody still ride on sew-ups?" line but all in good fun. Will have to read through a bunch more of this thread now for the current wisdom on cleaning the rims and gluing my Contis. My limited experience from back in the 90s was with tape and I may still decide to do that again. I never ride that far from home so calling the wife in case of a flat is an option 😉

markwesti 10-18-22 07:25 PM


Originally Posted by EVlove (Post 22683892)
I went to my local coop for the first time today to donate a couple of bikes and was allowed to dig through the pile of road bike wheels way in the back. Score! An almost matched pair of very grubby looking wheels, no markings on either rim, nor on the rear hub, but the front hub was a Campy Record with matching skewer. They had a Campy-hubbed rear, as well, but it was 120mm. Also picked up a 27x1-1/4 rear for the Dawes ("how many of those can I send you home with?") and basically had to force them to accept a $20 donation for the three wheels.

One of the younger mechanics did give me the "anybody still ride on sew-ups?" line but all in good fun. Will have to read through a bunch more of this thread now for the current wisdom on cleaning the rims and gluing my Contis. My limited experience from back in the 90s was with tape and I may still decide to do that again. I never ride that far from home so calling the wife in case of a flat is an option 😉

This way works for me .

EVlove 10-19-22 06:53 AM

Turns out I have a roll of cheap Zefal tape lying around that I ordered from Amazon by mistake, along with a Vittoria Rally I never needed. So that will become my spare then. I'll be sure to grab a set of those steel levers recommended above, as well.

At only $4 per roll I should actually practice with the Rally first, and find out how hard it is to remove.

Flashback to 30 years ago when I was commuting on tubulars and had to improvise after my first flat. No tape in stock at the LBS and I needed to get back on the road quickly, so I cut down carpet laying tape from the hardware store... I rode on that wheel for a long time IIRC but I was young and immortal and not exactly doing mile long descents in hot weather.

ETA: Ah, price does not include shipping. I could swear it did last time around.

Sorin 10-19-22 10:31 AM

I have found this locally , under 20$/ pcs . Quality? Feels really cheap but i haven't ride any tubular for more than 15 years. The one i had...idk what brand feels alot more suple .
https://cimg4.ibsrv.net/gimg/bikefor...6945ad588e.jpg

Are an older version of Rally? I am confused of what i want to choose , i am restoring an old Peugeot PA10L and would be my 1st ride with this bike after more than 15 years. So i am thinking to choose a some cheap ones and see how is the ride . I could buy locally these or Continental Giro some Tufo or Schwalbe for about 30$ and much more expensive Specialized , like 100$/pcs. Anything else i need to order them from bike24 and pay 10$ for shipping. What do you think? Are these worth a try or buy Conti Giro /Tufo? Next step would be Challenge at 27$ , next Conti Sprinter for like 38$ , next Sprinter Gatorskin for just 42$ ...then we arrive at Corsa&Veloflex ..and more. All review are verry good for Sprinter or Gatorskin as a " cheap " tire but they are double price for what i have found and don't have the vintage look. Any oppinions?Please help me to choose one:)
I will buy for sure also Veloflex or Corsa , but only when i will see them on sale & after i will test the bike with some cheap or little bit higher ones.

squirtdad 10-19-22 12:01 PM


Originally Posted by EVlove (Post 22683892)
I went to my local coop for the first time today to donate a couple of bikes and was allowed to dig through the pile of road bike wheels way in the back. Score! An almost matched pair of very grubby looking wheels, no markings on either rim, nor on the rear hub, but the front hub was a Campy Record with matching skewer. They had a Campy-hubbed rear, as well, but it was 120mm. Also picked up a 27x1-1/4 rear for the Dawes ("how many of those can I send you home with?") and basically had to force them to accept a $20 donation for the three wheels.

One of the younger mechanics did give me the "anybody still ride on sew-ups?" line but all in good fun. Will have to read through a bunch more of this thread now for the current wisdom on cleaning the rims and gluing my Contis. My limited experience from back in the 90s was with tape and I may still decide to do that again. I never ride that far from home so calling the wife in case of a flat is an option 😉

here is my go to for gluing tires Tubular Tire Mounting Cement Gluing Adhesion by Yellow Jersey; Thoughts on a Front Wheel ymmv

EVlove 10-19-22 01:38 PM

Gave the wheels a good scrubbing with an old toothbrush and some (original formula) Krud Kutter, followed by dish detergent and water. Much more presentable now. Didn't have time for the bearings but they feel reasonably smooth as-is, so a clean and regrease should do.

https://cimg9.ibsrv.net/gimg/bikefor...d2b71c3e8c.jpg

https://cimg3.ibsrv.net/gimg/bikefor...8692ca013b.jpg

One spoke has a kink, probably from rough handling at the bike coop. Would you straighten this, and how?
https://cimg2.ibsrv.net/gimg/bikefor...0f34877e31.jpg

Now the dirt is gone the gluing surface looks pretty good to me. Sorry, not quite in focus. Still too much residue?
https://cimg3.ibsrv.net/gimg/bikefor...bd0b411385.jpg

Classtime 10-19-22 01:43 PM

Sorin 20 bucks per is less than I paid for my Rallys when I tried them (and rejected -- never to buy again). But if you can get 3 tires for 60 bucks, go for it. OR tubular tire sewup tire Servizio Corse $19.95 tubular tires at Yellow Jersey; possibly the Best Value Tubular In America for 2022!

EVlove 10-19-22 01:55 PM

The 25mm Rally pre-stretching at what my crummy foot pump claims is 80 psi. These old rims are of course narrow, 20mm outside-outside, so the cloth is showing. Too much?

https://cimg5.ibsrv.net/gimg/bikefor...73ee53b0dd.jpg

And there's actually another bent spoke. Ah well. I'm more worried that the valve sits so high (not in this shot but I can see daylight). Looks like I will need to build up tape/glue there, right?
https://cimg6.ibsrv.net/gimg/bikefor...4d64fb73d2.jpg

Sorin 10-19-22 01:56 PM

Classtime , nice, America , the country of all possibilities. Where i live tubulars are not so popular, so all the online shop from my country doesn't stock them . Even for those Strada , they have only 2 😅😅, but i can buy Rally or whatever from bike24 and 10$ shipping cost.I have a little work on the frame, wating for new frewheel, pads go to bikeshop to redish the wheel , cold set frame , buy new axle maybe....and guess what? - Black Friday will come🤣🤣. Thanks Sorin.

79pmooney 10-19-22 02:46 PM


Originally Posted by EVlove (Post 22684733)
The 25mm Rally pre-stretching at what my crummy foot pump claims is 80 psi. These old rims are of course narrow, 20mm outside-outside, so the cloth is showing. Too much?

I've never even thought about that excess tape and I am sure I've display plenty to the world in my 25 years of exclusive tubular riding. The tire doesn't care. The bike doesn't care. Just you and other cyclists. (No one else is going to notice.) If your brake pad sneaks up a little (those darned centerpull/sidepull/dual pivot pads love to as they wear, the canti pads prefer the spokes) it will now be contacting sacrificial tape, not sidewall.

79pmooney 10-19-22 03:08 PM


Originally Posted by squirtdad (Post 22684600)

The tool for mounting tires that I've had forever but just realized its best use is my el-cheapo truing stand with its flat bar construction and feet. Bolt my wheel in with the tire also running through the stand. Start with the valve at 6 o'clock. Grab the tire with each hand about 14" away from the valve. Standing on the stand's feet, I pull outward and up. When that first 10" or so are well centered and stuck, I do the same with the next portion. Final is the usual struggle but even there, the stand and being able to pull up hard makes it easier. And best part? That pulling is done with some of your body's strongest muscles.

My other trick is about 2 feet of 2x4 clamped in a bench vise. I lay the top of the inside-out tubular tread down on the 2x4, hanging down both ends. Glue tape, move 2 feet and repeat. With these two tricks, mounting has never been easier.

Oh, pre-stretching - need varies a lot by tire model and manufacturer. Some require it, others don't. Even the ones I don't pre-stretch, I mount on a dry rim before gluing to get a feel for how hard that tire needs to be stretched. Too much stretch or tool little for the first portion of the mount makes for a tire with larger and smaller diameters. (The fabric doesn't stretch much, it mostly just necks down.)

Robvolz 10-19-22 03:44 PM

So, thanks to the advise from all, I have new tires front and rear. The rear, which was the first I've attempted in a bit, I got glue everywhere. Vittoria glue is much more runny than Clement.

Anyway, on the rim I used paint thinner, took it right off. On the sidewall, its pretty ugly. I'm reluctant to use anything because I don''t want to chemically weaken the structure. Unless someone recommends it.

Anyone?

DiabloScott 10-21-22 06:55 PM


Originally Posted by EVlove (Post 22684708)
Didn't have time for the bearings but they feel reasonably smooth as-is, so a clean and regrease should do.
https://cimg3.ibsrv.net/gimg/bikefor...8692ca013b.jpg

Like warm BUTTER!


Originally Posted by EVlove (Post 22684708)

Now the dirt is gone the gluing surface looks pretty good to me. Sorry, not quite in focus. Still too much residue?
https://cimg3.ibsrv.net/gimg/bikefor...bd0b411385.jpg

Nah, that's good - so long as it's not bumpy.

SJX426 10-25-22 05:56 AM

Some of you have probably seen my 1971 Bianchi build - Bike Forums. Several years ago, I found an add on CL a batch of NISI TORO rims.
Fopr the Bianchi, I finally purchased spokes after years of procrastination. Did the measure of ERD to be sure as I could not find specs for the NISI.
Built them up last week and will mount 25 Vittori Corsa G+ on them. They are not glued in the pic.
https://live.staticflickr.com/65535/...801aeeda_b.jpg71BianchiFWTruing on Flickr
https://cimg9.ibsrv.net/gimg/bikefor...501fa62525.jpg

HM70 10-30-22 04:27 PM

Changing rolling direction of used tubular
 
https://cimg7.ibsrv.net/gimg/bikefor...311c42700e.jpg
I got a cut on the tread of this tire. And it's opening up when I scrape the tire with my thumb. So I'm sure it will load up with debris as I ride. So my thought was to remove the tire and glue down the tread then remount it so it rolls in the opposite direction. Is there anything wrong with this approach? It's on its third season but this bike is not my regular ride. Thanks

79pmooney 10-30-22 05:07 PM

I'd glue that tab down with Shoe Goo. After that, direction will hardly matter.

Is that a lump I am seeing on the far side directly above the cut? Looks like there might be cut cord under the tab. In fact, it looks like there is a diagonal raised and slightly lighter in color stripe running under/through the cut. I'm guessing that the casing cord runs exactly at that angle and some strands have broken or been cut. If it were mine, I'd limit that tires miles to rides I had spares for and don't mind changing it or within the limits of patience of my ride service. (And my luck/belief - limit the tire to that and it will last me many more miles but a solo century would probably be its last ride. And I'm getting too old for those epic days.)

HM70 10-30-22 08:53 PM

Good observation! The lump is actually a spot where the tread is separating from the casing. The casing is is holding up great which is why I want to get many more miles on this set. I've only flatted once on the road with this set, put on my butyl spare training tire, but once home I used the Stans and remounted the tire. Works like a charm. (well two months later I needed to refresh the sealant).
So shoe goo is the way to go? I was just thinking vulcanizing cement like in the patch kit. Thanks!


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