Tub Woes

petemadoc

ugo.santalucia wrote:

PeteMadoc wrote:

With regards to sealant, is pit stop any more reliable than Tufo extreme? Tufo really didn't work on the corsa tyre and the hole was only small. It would seal for a few minutes and then air would burst out. Ugo I know you have a low opinion of sealant but if pit stop works I might carry that instead.

The sealant will work for 70-80% of the punctures, not all of them. It won't seal a large tear... if you have a way to make it back home, good... I don't, my wife doesn't drive and it could be a long walk to the next train station. I suppose one can call a taxi, assuming he can be clear at the phone where he is actually located, as these people won't take "somewhere between X and Y on the B 2033"... then of course the taxi bill will probably be close the cost of a couple of spare tubulars...
I mean, if you prefer not to spoil the lines of your bike by having a tubular behind the saddle instead... your choice...

Ha ha, like I said, not a fan Ugo. I would always carry the spare but would carry sealant too. Going back to Sunday's hill climb if the sealant had worked then I could have carried on a happy bunny!

sungod

PeteMadoc wrote:

Just for the record the stuff I have to clean off the rims is not the glue, it is a thick layer of latex gunk, it's patchy and is about 2mm thick. I'd probably feel OK to leave this on for 1 tyre change but after the second tyre comes off the rim would be the right shape. I know that not all tubs leave this stuff behind but Veloflex and Vittoria crosas do.<...>

you can scrape it off the basetape of new tubs, i've tried both ways, definitely prefer scraped

upside - the tub will now be much more firmly glued (see downside); when you do remove one the rim will have clean glue rather than latex on it

downside - takes time scraping off the latex, 15-20 mins maybe; the bond is so strong i end up blistering thumbs getting the tub off, now i use a lever to do it (a lezyne matrix lever is good for it, safe on cf rims)

ugo.santalucia

PeteMadoc wrote:

Ha ha, like I said, not a fan Ugo. I would always carry the spare but would carry sealant too. Going back to Sunday's hill climb if the sealant had worked then I could have carried on a happy bunny!

Sealant is the extreme remedy... you are in the middle of a 25 miles TT or an Iron man... you can lose 1 minute or 10, how important is the TT for you? Then decide...
Or it is the last resort if the alternative is a long walk home... it is not the solution as if it doesn't work, you have most likely wasted a good tyre

smidsy

thegreatdivide wrote:

thecycleclinic wrote:

For training rides I will go out with a two spare tubs and some pitstop.

That's a bit overkill if you ask me. For a sub 50 I take a can of Pit Stop, for longer rides a spare tub and Pit Stop.

Obviously you have some majic formula that means you only punture at 51 miles plus. :roll:

Spare tubs are not overkill when you need them, that could be 5 miles or 5000 miles, it matters not.

overlord2

Riding on tubs in the middle of hedge cutting season?

Good luck with that.

bernithebiker

Tubs are great.

10 000km so far this year and no punctures so far (touch wood).

And only one last year.

I only carry 1 can of Decathlon tyre sealant - works very well.

mitchgixer6

Overlord2 wrote:

Riding on tubs in the middle of hedge cutting season?

Good luck with that.

It's not the fact he's riding tubs at this time of year, it's the kind of tubs that seems to be the issue.

I've been lucky and got away with riding my evo corsa clinchers up til now with no punctures. But I've just changed over to my 'winter' tyres. No where near as comfy and definitely not as fast. But that's the trade off for puncture protection.

petemadoc

Another "just for the record" I live in North West Wales, the roads are relatively smooth and clear, conditions have been good and dry recently. Last winter I rode (including commutes) on the previous summers well worn race tyres, veloflex open corsa, and only had one puncture.

I wouldn't consider recent conditions in my area to be any different from July really.

Anyways I will persevere with my lovely tubs for now, try carrying a different sealant and see what happens on my next flat.

@ugo I wouldn't put the sealant in unless the tyre had a good few hundred miles on it, if that makes you feel any better

What sealant do people have the best results with when using more traditional tyres?

sungod

my experience is that tufo extreme works best, it's got more body than plain sealants, so it plugs better (much better than vittoria pitstop!)

i use veloflex carbons, the current rear has had one big cut (had to boot with a bit of old carcass, sew, glue etc.), and two small punctures, both of which sealed fine with tufo extreme and still hold when test inflated to 10 bar

no sealant will fix a big cut, for smaller ones, tufo extreme is best

dennisn

PeteMadoc wrote:

What sealant do people have the best results with when using more traditional tyres?

Sealant has pretty much zero to do with tyres(unless you're running Tufo's) and everything to do with tubes. Doesn't matter what tyre you run on, it's the tube that holds the air. :?

cycleclinic

For me sealant is last resort once two spare tubs have been used. The reason I want my tubs to be repairable easily. I have started carrying two tubs when I got a puncture, used the spare and realised the cut was two big to seal that worried me.