Who here has has a high speed blow-out at high speed.

I have had two blow-outs already.....luckily both were on the rear tire and I was going straight at the time. First time I destroyed the rim, but no damge to bike. Second time I only slightly pitted the rim surface because I was going slower.

I am really worried about going fast down hill wthout my Tufo Elites (tubular clincher) because once a regular clincher goes flat there is nothing holding the two edges of the tire togther and it just comes off the rim.

EDIT: Please include information about damaging the rim during the blow-out. Did you scrape on the rails?

I had one at about 35 mph in a curve. I saw the rock coming but I couldn't adjust my line, ran right into it. Front tire pretty much exploded on me. I still have no idea why I didn't go down but I am very thankful that I didn't, that would have hurt.

that first sentence -- straight from the 53-11 school of redundancy school, huh?

if you're worried about tires rolling off the rims, you should either, a) stop when you get a flat or b) get tires that fit right...

what about c) stop riding over pointy rocks?

High speed.....blow out......

What was I thinking?......If my tires goes flat in in 1 second at 35-50 mph all I need to do is squeeze the brake levers and I'm safe.

I definately wish I would have chosen option c. Unfortunately sometimes things happen.

Oh yeah, was running Michelin Pro Race tires w/ DT Swiss RR1.1 rims. I had no damage to the rim. The tire didn't leave the rim either.

The whole idea of a clincher is that it is a "safety rim". They don't just come off. The isea is that the tire sits inside the rim.

I had a high speed front blowout on my MTB. Somehow I didn't go down. Scarey at 37mph off road.

Well......Both times I didn't hit anything. It could very well be that I put too much psi in the tires.

[QUOTE=Avalanche325]The whole idea of a clincher is that it is a "safety rim". They don't just come off. The isea is that the tire sits inside the rim.

QUOTE]

The tire sits inside the rim if there is air in it.

I had a front tyre blow out on my ZX-9 doing about 85. I woke up in hospital 15 hours later. Amazingly, I only broke fingers and one kneecap. My head was a mess for about 18 months after though - constant headaches, periodic swelling.

Never had a blowout on my bicycle, and I'd rather not - not at 35-50 for sure!

I guess I have been lucky. I have never had a clincher come off of the rim. I hope I never have to say otherwise.

hmm..
20+ years of riding and not a single clincher blowout. maybe you need you some of them "speshul tahrs"

For some reason, you always manage to crack me up!! BTW, you're going to hate me but I got such a good deal I wen't with the 2003 red E5 frame. No stealth fighter black, just a blurr of red!

you've been lucky......doesn't mean it can't happen.

my next question is......would a wire beaded tire be safer than a folding tire as far as coming off the rim.....Maybe it's just the folding tires that are prone to coming off.

In defense of the clincher.....it will stay on for a few revolyions (maybe 10 or so), but if you are going fast.....you won't be able to stop quick enough and it will come off on you.

1) May we respectfully suggest that you learn to install tires without entrapping some portion of the tube under the bead of the tire?

2) Some loosely fitted wired-on tires will come off the rim during a stop with lateral loading after a rapid deflation at a high speed. Folding tires usually won't. This is because the specification for the bead diameter for wired-on tires must be a little greater because the wire bead is less flexible than a folding bead.

The issue is complicated by manufacturer motivations to conform to market forces and ETHRO specification: rim manufacturers can make any tire mount easily by building at the lower end of the specification, and tire manufacturers can make any tire fit easily by building to the upper end of the specification. You can imagine what happens when two slices of bread that both landed jelly-side-down come together....and some hook beads work better than others.

Try and limit your tires to 120 psi. With a gauge. Several gauges is better. Then you can dump the one that doesn't match the others. If they are all bad, don't put jelly on bread.....

I was able to come to a safe stop. I just put my weight as far back as possible and eased on the rear brake.

The tire I had was kevlar.

Well I've had 'blow outs' between 50 and 15 and never gone down or even damaged my rims. Only times I've seen 'flats' take people down are in sprints or in turns and then I'd venture it wouldn't matter what tire you had tubular or clincher, when you're on the side of a tire and it dissapears you're screwed.

If you didn't hit that pointy rock, then this is your solution.

So the normal thing to expect with a clincher blow-out is for the tire to stay on the rim? In pro-races are clincher tires staying on the rim at high speed when they flat.

I agree a clincher is meant to be a safety tire under conditions where heat could melt your tubular cement.....but during conditions of a flat or blow-out that safety doesn't exist and in fact may be worse than a tubular (tubie will stick to rim despite being flat......as long as glue doesn't melt)

Maybe a better question is if your tire stayed on did you scrape up the rim......pretty much any money I save by using clinchers is negated if I have to replace rims...

Only had one "blowout" ever - going 40+ down a steep hill with a sweeping turn. Ran over a sharp metal piece at dusk/near darkness and was lucky because there were no cars and I was riding near the middle of the road. Was able to straighten out enough while braking that the (clincher) front tire (700x25) stayed on the rim and rim was undamaged. As someone else mentioned, rear loaded while braking. Tire didn't pop, but loss of air was immediate.

edit: might add that I have no idea if the rim would have suffered or tire stayed on if I could not have straightened out...

No pitting on the rim huh?

This has happened to me twice....I scraped both times. I am wondering if this is normal (to scrape rim)

Had a double blow-out at 23mph while riding in a peleton when I hit a pot-hole.
I heard a couple loud pops and then the sound of the rear spokes clanging as they flexed with the rim.
New Mich pro tires $70
New tubes $12
Re-true/tension both wheels 2 hours
Getting that scared and not having to clean my shorts out....well you know...

Nope. Maybe because I was riding 25's?