Glueing tubulars [the tubular thread]

Everything about building wheels, glueing tubs, etc.
deermatt
Posts: 108
Joined: Tue Aug 09, 2011 11:46 pm

by deermatt

after doing a lot of reading, the only tubs i think I want now are veloflex carbon.

by Weenie


fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

AFAIK Veloflex is not and never has been sponsoring any meaningful (in terms of financial return) cycling team whatsoever.
Still, if you look closely you'll spot more rebadged Veloflex tyres than anything the sponsor would like them to run.
That should tell something in such a competitive environment, right?

Still, it's not so hard to imagine even faster tyres can be made. No one in the industry would be foolish enough to bring the perfect tyre to the market anyhow. It would be commercial suicide.
Nonetheless, I see quite a margin for improvement. Even at Veloflex's.

Ciao, ;)
Being a snob is an expensive hobby.

HillRPete
Posts: 2292
Joined: Tue Apr 12, 2011 8:08 am
Location: Pedal Square

by HillRPete

deermatt wrote:the guy I bought my 303s told me "the comps are a pain to install. Pay someone to do it for you. So I will, haha.

Yes, the front is glued on , and its a 22. Wouldnt it be weird having a 22 on the front, and 25 on the rear wassertreter ?

I'm fairly new to tubular (only a few years) and the Comps are the only ones I ever glued (not often, because they tend to last). 3mm of difference between front and rear should not be noticeable in bike handling, and in fact Conti's newest Attack/Force tyres are 22mm front / 24mm rear, too.

The installation takes a bit of determination, but it's not that bad if the tyre had been stretching for a while. Also it gives me peace of mind to know the tyre is fairly tight, even if the glue might fail.

fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

The installation takes a bit of determination, but it's not that bad if the tyre had been stretching for a while


IME, the few dozen of Conti Comps (which people seem all too keen on giving to me... :mrgreen: ) they don't stretch much if they do stretch at all.
And when they do stretch you'll often notice the base tape ends up torn as well, so caveat emptor.

I only have them on my second bike on a set of Neutrons for the moment. It took me so much effort to put them on that they're going to stay there untill I either puncture them or wear them out. Whichever comes first.
Besides that, that bike is my winter bike and my errants bike so I do not care too mmuch about how they perform. They do well in the wet and yes, they don't puncture easily. Other than that, I remain very much unimpressed, could as well ride a run off the mill clincher.....

Ciao, ;)
Being a snob is an expensive hobby.

User avatar
Calnago
Posts: 5315
Joined: Sun Nov 07, 2010 9:14 pm

by Calnago

@Fdegrove, try running lower pressures in your Contis than you do in your Veloflex. I ride Veloflex but I've had Conti comps and really, I think they are a fine tire. But they sure do get a bad rap on this site, mostly by you. But I agree, they are hard to stretch and mount compared to Veloflex. Still, having said that I put a set of Conti Comps 25mm on a set of nemesis,Record wheels just as an experiment to see how they compare to a set of Veloflex Arenberg 25mm mounted on an identical wheelset just to see for myself by riding them both if they really are that inferior of a ride as you claim.

HillRPete
Posts: 2292
Joined: Tue Apr 12, 2011 8:08 am
Location: Pedal Square

by HillRPete

Calnago, +1. I'm riding around 6.5 front, 7 - 7.5 rear, at a bit over 75kg. Most roads are in fair condition here, but also been taking them to (smooth) gravel sections.
Got Comp 25s on stash that I want to try, but those 22s have been holding up.
Pondering to try Force 24s front on alu / Comp 25 rear on carbon as a bad weather and big descent combo.

Geoff
Posts: 5022
Joined: Sat Dec 13, 2003 2:25 am
Location: Canada

by Geoff

Don't get me wrong, I'm not saying that the Conti Comp is an ideal tire, or anything.

The OP wanted to know if it was a good tire for all-around use. It definitely is that. The Conti Comp is durable and can be used in most all weather conditions. Is it more 'clincher like' than a great hand-made tire like an FMB CX? Of course. Can it be harder to mount? Probably. For everyday riding, I like them just fine.

PS, the 22/25 Conti Comp combo works just fine...

fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

@Fdegrove, try running lower pressures in your Contis than you do in your Veloflex.
:)

Actually, I'm pretty sure it was me who gave that advise in the first place.

As an all round, bad weather/winter tub Conti Comps are O.K. but IMHO heavily overpriced.
I do like the Black Chili Compound and the Vectran anti-puncture belt but that's about it.
Just imagine what this tubbie could be like if it were built around a Veloflex type of casing and came with a top notch latex inner tube.....

Ciao, ;)
Being a snob is an expensive hobby.

deermatt
Posts: 108
Joined: Tue Aug 09, 2011 11:46 pm

by deermatt

i put my zipp valve extenders on my 303s , and my tire is being glued on tomorrow. My question is, how do i ever use pitstop without it clogging all in the valve? Is there a trick on a conti tub?

HillRPete
Posts: 2292
Joined: Tue Apr 12, 2011 8:08 am
Location: Pedal Square

by HillRPete

deermatt: never any issue (with conti extenders) on conti tubs here. The (Vittoria) Pitstop is a very light foam, all that's left is a sticky feeling valve, but that's easily cleaned off (stickiness doesn't last through the next rainy ride anyway).

User avatar
Kjetil
Posts: 1328
Joined: Sat Jul 30, 2011 1:17 pm
Location: Hamar, Norway
Contact:

by Kjetil

I wouldn't use those Zipp extenders that go on top of the valve, but the Conti, Tufo or equivalent that go between the valve stem and the valve itself.
Bianchi-Campagnolo

liam7020
Posts: 758
Joined: Tue Jul 27, 2010 10:04 am

by liam7020

Just a quick question if someone would be kind enough to help me out. Can I use Schwalbe glue remover to clean old Mastik off a used tub? Ta.
Belgian Flag S-Works Tarmac viewtopic.php?f=10&t=144553

"Sometimes you don't need a plan. You just need big balls." Tom Boonen

fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

Yes, you can.

Ciao, ;)
Being a snob is an expensive hobby.

liam7020
Posts: 758
Joined: Tue Jul 27, 2010 10:04 am

by liam7020

Cheers fdegrove
Belgian Flag S-Works Tarmac viewtopic.php?f=10&t=144553

"Sometimes you don't need a plan. You just need big balls." Tom Boonen

by Weenie


User avatar
Kjetil
Posts: 1328
Joined: Sat Jul 30, 2011 1:17 pm
Location: Hamar, Norway
Contact:

by Kjetil

Bianchi-Campagnolo

Post Reply
  • Similar Topics
    Replies
    Views
    Last post