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Abrupt air loss in front tire, what to do?(3 posts)

Abrupt air loss in front tire, what to do?lithiapark
Oct 18, 2003 8:12 PM
About 35 miles into an early morning 50 miler I was tucked in going down a steep and twisty two lane, straight fortunately right where I was, at 35-40mph, well at least a lot faster than I could peddle so I was coasting. Heard a "clink" immediately followed by "ptuu.." and in about a second had no air in the front tire. Shfifted my weight back, braced my arms, and applied the rear brake ever so gently, and hoped. Took a couple of blocks to come to a stop, but the tire stayed on (Tufo S3 lite, 195, tubular) and I didn't fall over:). Tire had a big cut in it that the sealant tried to fill, but it wouldn't hold more than 20psi, if that, so I had to call the home team sag wagon. I think I got lucky (visions of Beloki flashed before me). Since this is a first for me, what are you supposed to do? What do you do if you are on a corner? What do you do if it is the back tire? Never really thought about this a lot although I've had some mountain bike tubes pop and the tires come off the rim. MTB speeds (mine anyway) are slower and so far so good. Any help would be appreciated. PS: I don't blame the tire, the Tufo glue tape held well, and the rim, Zipp 404, came out ok. I'll happily buy another Tufo. Paul
re: Abrupt air loss in front tire, what to do?xxl
Oct 19, 2003 6:04 AM
Nice to hear you didn't dump at that speed. After you finish uncorking your sphincter ; ) and thanking Our Lady of Ghisallo, congratulate yourself on doing the main thing right; i. e., getting your weight back. But, try to stay relaxed (vs. "bracing the arms", I know, a tough thing flying downhill), and don't brake until you've really slowed. Once you flat in front, the big danger is unrolling your wheel, and losing all traction as the metal meets the tarmac--uhlp! Even at speed, a flat tubie will tend to stay on the wheel, as you coast to a stop. The back tire flats are not nearly as traumatic, since you retain steering; same advice applies. If you're cornering, the front tire will want to unroll, so you're supposed to have the 'nads to remember to dump to the inside (though it happens so fast, you're usually down before you realize it, and it's a non-issue).

It's a personal thing, but my personal preference was for rim glue, instead of tape, for the holding power. But I'm a clincher user now, so maybe tapes are better.
you do what you did and pray it works (nm)ColnagoFE
Oct 20, 2003 1:32 PM