New to tubulars questions.

Dudders29

Tub tape or glue ?
23 or 25's
If using tape, what do you do if you have to change a tube during a ride. I gather you fit as normal and simply rely on the tape that's already on ?

n1ckster

Glue, 25's, spare glued tub carried under the saddle.

Nick

lawrences

If using tape you bring some spare tape along.

Dudders29

Does the old tape come off when you take the tyre off?

lawrences

I find it sticks to the rough surface on the tyre better than it sticks to the wheel so It'll come off with the tyre. If it doesn't all come off you can pick at it anyway.

I'd suggest going down the glue route anyway though, seems daunting at first but there's lots of guides out there.

Grill

Glue 19mm :P

Dudders29

Sorry for all the questions, but if using glue and not tape how do you change a tyre on a ride, surely you dont take glue with ya. If ya apply glue to the spare, surely it looses its stickiness when stored on the bike ?

JayKosta

With glue ....
Pre-glue the spare with a thin coat of glue and let it dry thoroughly - it will remain somewhat tacky for a long while. Personally I don't pre-glue, I just trust the remaining glue on the rim and the tight fit of the tubular on the rim to be adequate for reasonable riding - avoiding extreme speed and hard turns....

Before using glue or tape, mount each new tubular on a rim and pump to pressure to get it stretched enough for real mounting. Some tubulars can be very hard to mount so prior 'dry fitting' will save a lot a aggravation. For extremely tight new tubulars I wet the tire with water and wipe off the excess - that seems to allow the tire to stretch a little and get onto the rim.
Be SURE to pre-stretch your spare tubulars - you want to be able to mount the spare when sitting on the side of the road.

When mounting a tubular, start at the valve and work around both side of the valve equally - be SURE to keep the valve straight in the rim, or the valve stem or tube can be damaged.

BTW, I haven't used my tubular wheels (they're ready to go with new tires already mounted) for several years... see above! Tubulars ride great, but modern lightweight clinchers are more convenient for me.

Jay Kosta
Endwell NY USA

StillGoing

25mm. Roll faster and can be run at lower pressures. Glue every time and pre-glued spare. I leave a small unglued gap of a couple of inches opposite the valve to help get a damaged tyre off.

rc856

Great advice above and all you'll need to read here...

http://weightweenies.starbike.com/forum ... .php?f=113

dennisn

Dudders29 wrote:

Sorry for all the questions, but if using glue and not tape how do you change a tyre on a ride, surely you dont take glue with ya. If ya apply glue to the spare, surely it looses its stickiness when stored on the bike ?

FWIW I use tape. Don't have any issues with it. Getting the tire off after a flat is not any easier or more difficult using tape or glue(imho). As for spares on the road, I simply rip the old one off, put a spare on, pump it up, and ride CAREFULLY(no hard, tight turns or really fast descents) home. If you're racing, or even touring, and want to continue then tape would be my choice. Pre gluing a tubular is not going to be as strong a bond as tape. Tape works pretty much instantly and you're off again, but does take a bit of time to install(on the road). If you are in a race a flat is most likely the end of your race. Unless of course you have a spare wheel and are allowed a free lap to change it.

e999sam

Tape every time. I find it much easier to fit a tub using tape and I've never had a tub roll off.

herzog

Tape on the carbon wheels that don't see the mountains (but used for racing).
Glue on the aluminium rims that get used on long descents and for training.

Never had an issue with either.

Grill

Tape is slower so don't do it if racing.

e999sam

Grill wrote:

Tape is slower so don't do it if racing.

If I puncture in a race it's pretty much over for me so I don't even bother carrying a spare.

dennisn

e999sam wrote:

Grill wrote:

Tape is slower so don't do it if racing.

If I puncture in a race it's pretty much over for me so I don't even bother carrying a spare.

I always carried a spare, IF the race course was over 4 to 6 miles. Hate walking or riding on the rim. For crit's I always took spare wheels and used the free lap rule.

Grill

e999sam wrote:

Grill wrote:

Tape is slower so don't do it if racing.

If I puncture in a race it's pretty much over for me so I don't even bother carrying a spare.

Not what I meant. A properly glued tub will have a lower Crr than one that is taped. Also a properly glued tub is a lot safer to ride flat than one that is taped (did 5 miles in Welsh lanes on one that was completely flat).

backo

no-one bother with sealant when dealing with a puncture?

Walls82

I recently bought tubs and haven't dared travel further than 20 miles from my house, a crying shame as the wheels are amazing to ride!

On long rides what do people take out with them? I've read mixed things about sealant and what sealant to use, I have vittoria corsa evo cx but read something about certain sealants corroding the latex tube?

dennisn

Walls82 wrote:

On long rides what do people take out with them?

It's called a spare.

dennisn

Grill wrote:

Also a properly glued tub is a lot safer to ride flat than one that is taped ....

Sorry. Gotta ask. Where did you come up with that theory? :?

drlodge

Walls82 wrote:

On long rides what do people take out with them? I've read mixed things about sealant and what sealant to use, I have vittoria corsa evo cx but read something about certain sealants corroding the latex tube?

I have the vittoria corsa evo cx on my 50mm carbon wheels, and carry a spare + can of sealant just in case. I only use these wheels when its fine and haven't had any Ps yet. If the spare + sealant isn't sufficient to get me home I'll call the girlfriend or a taxi...chance of that happening is pretty minimal.

thegreatdivide

Two spare tubs is overkill.

On long rides when I know I'll be far from home I'll take 1 x bottle of tufo and my very light tufo elite jet tub.

But most of the time I just ride with the wee bottle of sealant in my jersey pocket.

Grill

dennisn wrote:

Grill wrote:

Also a properly glued tub is a lot safer to ride flat than one that is taped ....

Sorry. Gotta ask. Where did you come up with that theory? :?

I didn't come up with it, and it's hardly a 'theory'. Tape is 8.8% slower than a proper glue job.
http://biketechreview.com/forum/1-general-discussion/24408-crr-comparison-mastik-1-vs-tufo-extreme-tape

colinsmith123

Grill wrote:

dennisn wrote:

Grill wrote:

Also a properly glued tub is a lot safer to ride flat than one that is taped ....

Sorry. Gotta ask. Where did you come up with that theory? :?

I didn't come up with it, and it's hardly a 'theory'. Tape is 8.8% slower than a proper glue job.
http://biketechreview.com/forum/1-general-discussion/24408-crr-comparison-mastik-1-vs-tufo-extreme-tape

Slightly off-pist(a), would you ride a tubs stuck on with tape on an indoor velodrome? Even if you were allowed. Glue every time.

charlie_potatoes

Grill wrote:

dennisn wrote:

Grill wrote:

Also a properly glued tub is a lot safer to ride flat than one that is taped ....

Sorry. Gotta ask. Where did you come up with that theory? :?

I didn't come up with it, and it's hardly a 'theory'. Tape is 8.8% slower than a proper glue job.
http://biketechreview.com/forum/1-general-discussion/24408-crr-comparison-mastik-1-vs-tufo-extreme-tape

That looks totally irrefutable does that

dennisn

Grill wrote:

dennisn wrote:

Grill wrote:

Also a properly glued tub is a lot safer to ride flat than one that is taped ....

Sorry. Gotta ask. Where did you come up with that theory? :?

I didn't come up with it, and it's hardly a 'theory'. Tape is 8.8% slower than a proper glue job.
http://biketechreview.com/forum/1-general-discussion/24408-crr-comparison-mastik-1-vs-tufo-extreme-tape

I thought you were talking about riding WITH A FLAT TIRE being safer if it was glued on conventionally as opposed to tape? That's the way it sounds to me. :?

Also, maybe I didn't read far enough into the blurb you posted, but "proof", of anything, is not a bunch of guys on a forum who had friends who did tests with a other friends gear. :?

Grill

A properly glued tub is always going to be safer riding flat than on that has been taped. That's from both experience and common sense (it's much easier to remove a taped tub than a properly glued one).

Yes, they did tests and found properly glued was faster. Had the outcome been reversed then you would use it as proof that tape is faster (it's not). It's easy to see that properly glued tubs are faster than lightly glued tubs, and tape is anything but properly glued. Crr tests are the reason Tony Martin rides clinchers. Also no serious pro or tester rides taped tubs. Deductive reasoning dictates that this is because it's slower.

Take a look for yourself at Crr and then try to seriously defend the position that tape is faster.
http://www.biketechreview.com/tires_old/images/AFM_tire_testing_rev9.pdf

dennisn

Grill wrote:

(it's much easier to remove a taped tub than a properly glued one).

Not so sure about that, one way or the other. Both ar not an easy chore(on the road at least).

Also don't believe anyone(other than you) really cares about whether the rolling resistance is better or worse for either.
Plus Tony Martin says what his sponsors tell him to say. If Tufo sponsored him he would be all raves for their tires and tape.

Grill

dennisn wrote:

Grill wrote:

(it's much easier to remove a taped tub than a properly glued one).

Not so sure about that, one way or the other. Both ar not an easy chore(on the road at least).

Also don't believe anyone cares about whether the rolling resistance is better or worse for either.

Anyone who TT's (like me) cares about Crr.
Taped tubs are waaaaaay easier to remove than properly glued (5 coats) tubs. Not even a contest.

markyone

Tufo sealant in my jersey pocket,i have been lucky so far.
You can also pre treat your tub if you like with sealant but I don't do that anymore,but when I did have a puncture in the front saw the sealant squirt out a little and carried on riding tyre stayed inflated.