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Tubular dilemma(6 posts)

Tubular dilemmaWilliam
Jul 2, 2003 2:38 PM
As a mechanic it sound dangerous, but in some way this does seem possible....

Here is the situation, I have a front 700c disc for my track bike, a clincher, and wonder how unsafe it would be to try to glue a tubular to it?

I would assume it is really a matter of surface area for glue to be able to adhere to the tire and rim. I have been gluing tubulars for 5 years now and being one to experiment I figured this may be possible. Tufo makes the Tubular-clincher tire but that thing is a brick. I just stuck an old Clement on an Open Pro rim and it looked like a pretty snug fit @ 80psi w/o glue.

I am using a front 700c disc, on the track for kilo and pursuit, and the occasional weather permitting road tt.

If anyone has any "constructive" advice on this topic or horror story to keep me from trying this I may have to give it a go.

I am 10 minutes into this idea, so please don't be to ruthless

Thanks,

Brakeless in Baton Rouge
Are you smoking crack??Alexx
Jul 2, 2003 3:40 PM
No, there is NO WAY you will get a good bond, because the base tape won't be touching the rim over a large enough area. You said that an unglued tubular was "pretty snug", did you? Were you able to pull it off with fewer than 2 strong hands when it was deflated? Were you able to pull it off at all when it was inflated? Unless you can say yes to both questions, then you are gonna have a big-time wreck, sure as sh!t.
But don't believe me-go out and try it for yourself....
Alexx said it all (nm)Kerry Irons
Jul 2, 2003 4:19 PM
yes, but I would addDougSloan
Jul 3, 2003 6:19 AM
That officials would probably yank your license if they caught you doing this. Endangers other people.

Doug
Conti Supersonic & lunarlight tube....DaveLobster
Jul 3, 2003 8:02 AM
Would accomplish the same thing much safer. -Dave
Ummm, nope.jw25
Jul 3, 2003 9:13 AM
Sorry, but you're stuck with clinchers. Actually, I'm amazed you could get a tubular on a clincher rim. I tried the same thing a couple years ago, for s&g, and could barely get the tubie on, and couldn't get it straight.
My other fear with the idea is, the seat for the tire isn't shaped the same way, and you could stress the casing quite a bit by forcing it to conform to a different shape. Notice how tubular rims are rounded where the tire sits, while clinchers are much more square? Plus, that also means there's a lot less surface area for glue, as was mentioned. There was one rim made a long time ago, the Wolber Mixte, that had curved sections above the beads seats, so it could be used for both clincher and tubular, but I'm betting the rim used on your disk doesn't have this.
Sorry, but I don't think it's a good idea. The last thing you want on the track is a rolled tire - ever see the video of a track rider going over the railing (think it was on Ripley's Believe it or Not or Real TV)? He fell 30 feet, just missing the power lines that caught his bike, and broke his arm, I think. Lucky he landed on it, and not his head.
Try a light clincher instead - Panaracer Stradius TT, Conti Supersonic - with a light tube, and pump it up hard. Both ride fairly supple, and the weight's similar to a nice tubie, as well.