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

MooneyBloke 01-09-23 05:34 PM

I do remove the core, but sometimes if the tire moves at all, air coming out pushes Stans out of the stem making a mess. I figure the cannula would get the stuff past the stem making this problem less likely.

MooneyBloke 01-09-23 05:36 PM


Originally Posted by CV-6 (Post 22763111)
I have such a kit, but the syringe is 60cc.

You're right. It's much bigger. 5cc would be less than 1/5fl oz. Not very useful.
My oopsie.

I do wonder why some of those kits have a stopcock on the extension tube. Consequence of repurposing medical equipment maybe.

mosinglespeeder 01-10-23 07:12 PM

I use a syringe and remove the valve core: very little mess

chain_whipped 01-18-23 09:12 PM

Rule one; don't use sealant in a tubular tire with latex tubes. Too sticky and when its reinflated, can tear the latex tube.
https://cimg2.ibsrv.net/gimg/bikefor...6cdc12b83f.png
Circa 1973

Positron400 01-19-23 02:10 AM


Originally Posted by Drillium Dude (Post 22731602)
All done, no muss, no fuss. For posterity, I took some pics:











https://live.staticflickr.com/65535/...e8907e1f_h.jpg

DD

Amazing looking bike, what a stunner :O - What are those rims? I'd absolutely love to get me some of those for my randonneur.

obrentharris 01-19-23 03:52 PM


Originally Posted by chain_whipped (Post 22773543)
Rule one; don't use sealant in a tubular tire with latex tubes. Too sticky and when its reinflated, can tear the latex tube.

Circa 1973

I've been using sealant in tubulars with latex tubes for a few years. But I make sure that my tubulars never go completely flat between rides, which is bad for the tubes anyway if the bike is sitting upright on its tires. This only requires me to re-inflate every week or two, which might get to be a chore if you have a collection of 20 bikes but I only have three bikes with tubulars.
Brent

SwimmerMike 01-19-23 07:43 PM


Originally Posted by obrentharris (Post 22774459)
I've been using sealant in tubulars with latex tubes for a few years. But I make sure that my tubulars never go completely flat between rides, which is bad for the tubes anyway if the bike is sitting upright on its tires. This only requires me to re-inflate every week or two, which might get to be a chore if you have a collection of 20 bikes but I only have three bikes with tubulars.
Brent

My method is to not use sealant until I have a flat. Then, hopefully, I reduce the chance of an issue and I am only risking a tubular that I would need to repair anyways.

MooneyBloke 01-20-23 07:01 AM

While I'm mainly riding Veloflex these days, I do have a few old Conti Sprinters I'd like to marshal into duty as spares. The main issue is that I've never found a good adhesive for sticking the base tape on those. Good cotton tires do well with Val-A Tear Mender. (Trust the Bish!) This stuff doesn't work in any way with the Continentals. Has anyone tried E6000 for this job? Any success here?

Miele Man 01-21-23 04:11 PM

You can buy a basting syringe at a dollar store. The metal needle is small enough to fit inside the Presta valve sleeve once the valve is removed.

Cheers

Classtime 01-22-23 09:21 AM


Originally Posted by MooneyBloke (Post 22775111)
While I'm mainly riding Veloflex these days, I do have a few old Conti Sprinters I'd like to marshal into duty as spares. The main issue is that I've never found a good adhesive for sticking the base tape on those. Good cotton tires do well with Val-A Tear Mender. (Trust the Bish!) This stuff doesn't work in any way with the Continentals. Has anyone tried E6000 for this job? Any success here?

Maybe try this?
https://www.bikeforums.net/21100877-post1341.html

MooneyBloke 01-22-23 10:11 AM


Originally Posted by Classtime (Post 22777153)

That's the Tear Mender adhesive that I don't think sticks well (from personal testing) even compressed with the Conti casings. It does a perfectly fine job with Vittoria and Veloflex cotton tires, and I keep it around for that. I'm wondering if E6000 does a better job with Conti's harder casing material.

Incidentally, I've also experimented with several high strength industrial neoprene adhesives from 3M, and the adhesion is still poor. Basically, the carcass rubber seems both very slick and impermeable to most glues. Maybe there's a solvent prep that might help, but I've not experimented here.

MooneyBloke 02-26-23 09:29 AM

Here's a question for the peanut gallery: why the hell is Conti glue so damned expensive these days? My old 350g can for which I payed $25 at my LBS is nearly gone. No matter where I look, it seems they want about $70 for the same thing. While it's been a while since I've purchased glue, the jump in price seems unreasonable to me. The tires themselves have gone up a bit, but by a reasonable amount.

smontanaro 02-26-23 12:28 PM


Originally Posted by MooneyBloke (Post 22812906)
why the hell is Conti glue so damned expensive these days?

Can't tell ya, but Vittoria Mastik One is available at $25/250g.

Classtime 02-26-23 01:36 PM

Yep. I used to use Continental also. I’m about 1/2 way through my can of Mastic One at the moment. I’ve been using it on my Continental tires without problems😉

Drillium Dude 02-26-23 03:25 PM


Originally Posted by Positron400 (Post 22773669)

Amazing looking bike...what are those rims? I'd absolutely love to get me some of those for my randonneur.

My apologies - I missed this question!

The rims are Mavic Reflex SUPs with machined sidewall treatment. Compared to vintage tubular rims (on which the braking surface is a mere suggestion), the machined track is a game-changer.

I found them on Ebay, from a seller in Australia. They pop up from time to time. Good luck in your search!

DD

seedsbelize2 02-26-23 04:36 PM

It was covid time and affordable spokes were like hens teeth. I had a tubular repair build (two broken spokes side by side on the same ride, used, mismatched build at that). The calculator calls for 296 and 298, and toward the end of that madnness I was able to find a box of 298. Figuring I would build both sides with this length. What say you members of the totally tubular thread? Mavic Monthlery Pro with Campagnolo Record. Just this afternoon I got it taken apart. Now that it's written down I realize I could potentially nip 18 of those spokes if necessary. I'm thinking it's not necessary.

MooneyBloke 02-26-23 04:56 PM


Originally Posted by smontanaro (Post 22813073)
Can't tell ya, but Vittoria Mastik One is available at $25/250g.

I'm not looking to change glues. I'm just looking for an good explanation. BTW: I did think of switching a while back, but two things dissuaded me: 1) it was out of stock everywhere. 2) I understood that a mid-ride change was a lot harder with Vitt than with Conti.

seedsbelize2 02-26-23 04:58 PM


Originally Posted by SJX426 (Post 22690357)
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

I had not seen this idea for a truing stand. I like it!

MooneyBloke 02-26-23 05:00 PM


Originally Posted by Classtime (Post 22813148)
Yep. I used to use Continental also. Iím about 1/2 way through my can of Mastic One at the moment. Iíve been using it on my Continental tires without problems😉

In my case, I'm riding Veloflex, but it's more a matter of wanting to stick with a known quality, and not wanting to need to take the rims down to bare metal or change toss tires previously glued with Conti if I patch them.

seedsbelize2 02-26-23 05:19 PM


Originally Posted by Drillium Dude (Post 22725544)
My weight fluctuates between 180 and 195, but I don't know that it has any bearing on my 'ride requirements'. My riding style demands a planted rear end, and a front end I can lean on, plus I take a lot of feedback from the road surface into consideration when I make moves. All of this requires a hard-blown set of tires with which to transfer the info to my hands, feet, and butt. Sounds funny, but it's true. Low pressures induce a feeling like being on a pogo stick, and the feedback is mushy and inconsistent; I cant plant the rear end, much less do anything with precision regarding the front end, with tires performing with too much bounce/rebound.

High pressures do allow the occasional skipping of the rear or front tire, but again, feedback is such that I know when it's going to happen, and reflexes compensate. Like catching a moment of oversteer in a car.

The Alpina was fitted (unknowingly) with the aforementioned Elites, and taken up to 115psi, which was still squishy and ponderous-feeling, when someone here noted the sidewalls said the pressure was limited to 105psi. First time I noticed the rating didn't match the ad copy, and I couldn't imagine the feeling if I were to let out 10psi.

Anyway, those are still on the bike, but I didn't bring it with me and it won't see much use (now a zero bike in WA), for good reason. The 'cushy ride' many describe when running tubulars at lower pressures simply translates into 'bouncing' for me and my sensitive contact points. I know I'm an outlier :)

DD

As I read this I'm reminded of the extreme noodly feeling my 79 Trek 930 gives with low pressure tires, Thanks!

EVlove 02-26-23 06:53 PM

A lot of life in this thread today! I have a minor deal alert and a question.

Challenge Forte 24mm for $36.99 at The Pro's Closet -- I don't need these but what's the general experience with this vendor?

Another question, actually, about mismatched widths front and rear. I picked up a single 23mm Vittoria Rally months ago, cheap, last one in a clearance sale. Thinking about combining it with another Rally but in 25mm for the rear, or should I stick to the same size to complete the set? This wheelset would go on the Bianchi or Lotus for short rides (rarely over 20 miles) from my home. Some really crappy asphalt around here and the Rally is not known to be a soft ride. 155 pound rider here.

Classtime 02-26-23 07:49 PM


Originally Posted by MooneyBloke (Post 22813323)
In my case, I'm riding Veloflex, but it's more a matter of wanting to stick with a known quality, and not wanting to need to take the rims down to bare metal or change toss tires previously glued with Conti if I patch them.

Once in a while we strip off the old glue anyway and I didnít notice a difference. Another thoughÖat 70 bucks a can, that glue could be pretty old.

seedsbelize2 02-26-23 09:15 PM

I frequently ride different width tires front and rear. 25 rear; 23 front is common

Drillium Dude 02-27-23 01:10 AM


Originally Posted by EVlove (Post 22813413)

I have a minor deal alert and a question.

Challenge Forte 24mm for $36.99 at The Pro's Closet -- I don't need these but what's the general experience with this vendor?

I haven't used the vendor, but I've experience with Challenge tires - both tubular and open clinchers. Their reputation for self-separating treads - even on brand-new, never used tires - is unfortunately well-earned.

Personally, after receiving an NOS pair with separating treads, I finally gave up on Challenge. In recent years, they've also lowered the maximum pressure for at least two of their models: Elite and Elite Pros both used to be rated from 115-145psi; now the pressure range is down to 95-115psi. This reduction indicates they've chosen to go with a less-robust casing design. Certainly the process used to affix the tread to this casing is lacking in some form or another.

DD

pastorbobnlnh 02-27-23 06:57 AM


Originally Posted by MooneyBloke (Post 22812906)
Here's a question for the peanut gallery: why the hell is Conti glue so damned expensive these days? My old 350g can for which I payed $25 at my LBS is nearly gone. No matter where I look, it seems they want about $70 for the same thing. While it's been a while since I've purchased glue, the jump in price seems unreasonable to me. The tires themselves have gone up a bit, but by a reasonable amount.

I wonder if it has to do with VOCs? Pretty much everything that used curing evaporative agents back in the day has had to been reformulated to meet current safety standards.

Just think of the cost of a gallon of quality house paint (interior or exterior) and how it has increased from $25-35, 25-30 years ago to $50-75 today.

Now, consider how much paint is produced compared to tubular glue. Plus, the total quantity of paint is probably increasing while those of us using tubular glue is most likely declining.

All this conspires to drive the cost up. Hmmmm--- being a tubular tape guy, I might start hoarding my lifetime supply to beat future inflation!

Drillium Dude 02-27-23 08:02 AM

Any glue-fans interested in two unused/sealed tubes of Tubasti rim cement? Still squishy:

https://cimg9.ibsrv.net/gimg/bikefor...878feb86a8.png

18 bones, shipped.

They'll go in a small box, so's they arrive in the same condition as pictured.

I prefer tape, so this stuff's up fer grabs :)

Edit: And, hey, if you just want to huff it, who am I to stand in your way? I won't judge!

DD

seedsbelize2 02-27-23 08:35 AM

I will switch to tape, when my last tube of glue runs out. Something that can be carried on an airplane. This stuff cannot, and it's even less available in Mexico than in other parts of the world.

MooneyBloke 02-27-23 09:42 AM


Originally Posted by Drillium Dude (Post 22813767)
Any glue-fans interested in two unused/sealed tubes of Tubasti rim cement? Still squishy:

https://cimg9.ibsrv.net/gimg/bikefor...878feb86a8.png

18 bones, shipped.

They'll go in a small box, so's they arrive in the same condition as pictured.

I prefer tape, so this stuff's up fer grabs :)

DD

t
I thought that Tubasti had the property of remaining squishy for all time.

Drillium Dude 02-27-23 10:46 AM


Originally Posted by MooneyBloke (Post 22813856)

I thought that Tubasti had the property of remaining squishy for all time.

Perhaps whomever becomes the next 'custodian' of these little gems can put them in lukewarm storage, and get back to us with an update in a decade or two...

DD

Classtime 02-27-23 11:08 AM

I think have a test tube also. 10 years ago, it was all I could find at several LBS. I have been afraid to use it.


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