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Trainers and Blown Tires(8 posts)

Trainers and Blown TiresCabin
Mar 28, 2003 12:47 PM
I'm having trouble blowing out 27 X 1 1/8 tires on my trainer. I stopped today when a couple of large bulges appeared right on the tread ( not sidewall). It is obviously a heat problem. My old bike on the trainer uses Schroeder valve tubes.

Should I adjust roller pressure to be more ( to decrease slippage) or less ( to let it ride easier with less pressure on the tire)?

Should I inflate to high or low end of range?

Should I buy expensive light weight tires or cheap heavy ones and just plan on replacing more often?
None of the above.Scot_Gore
Mar 28, 2003 1:19 PM
My first thought is you're using the wrong size tube for the tire. You should check it.

Probably completely wrong, but it's what comes to mind.

Scot
None of the above.Rich_Racer
Mar 28, 2003 2:07 PM
How old is the tire? They can get pretty worn out, pretty quickly on trainers.

Get the cheapest tire you can that has no tread on it.
Huh?Kerry
Mar 29, 2003 7:40 AM
How would the wrong size tube cause the tread to bulge? Must be some mechanism heretofore unheard of in tires. The problem is a combination of cheap (and perhaps old) tires and excess heat. Let's face it, there are no "good" 27" tires on the market now, so if his tires were good, then they're old. Need to adjust tension for minimum heat and have the tires fully inflated. Usually, more tension, within reason, is better.
Huh?Cabin
Mar 29, 2003 1:55 PM
Thanks, I agree, this makes the most sense to me. Performance Bike Shop in my Denver neighborhood still sells 27" tires. Don't know how old they are, but they have plenty in stock. It's their brand GT2 K with a Kevlar bead for $16.

http://www.performancebike.com/shop/Profile.html?SKU=4664

Will maintain air pressure and adjust tension and see how long it lasts.
re: Trainers and Blown TiresCabin
Mar 31, 2003 10:37 AM
Well, after a total of 70 minutes in two workouts, I've lost another tire. Pressure is fine, tension is reasonable. It must be the tire. As someone said at this point there are no good 27" tires.

You guys that use a trainer: How many hours should I expect from a tire if I were to invest in new wheel sized for new tires?
If you only use it in the trainer....TFerguson
Mar 31, 2003 3:29 PM
and don't need the brakes, just pick up a cheap rear wheel with the correct spacing and cassette/freewheel.
TF
Or just get the 700c rear wheel for the trainer...TFerguson
Mar 31, 2003 3:32 PM
and put the 27" back on for the road.
TF