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tire turning silver on trainer

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tire turning silver on trainer

Old 06-28-15, 09:33 PM
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greenlight149
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tire turning silver on trainer

is this a bad sign? is the roller of the trainer wearing away and coating the tire? googled it but can't seem to find a definitive answer.

Kurt kinetic, 110 psi, 2.5 turns.

Last edited by greenlight149; 06-28-15 at 09:48 PM.
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Old 06-28-15, 10:36 PM
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The same thing happened to the tire I used on my trainer. I think the plating on the roller wears and coats the tire. So far I wore out more tires than rollers.
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Old 06-28-15, 10:38 PM
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It happens. The solution is to only use your trainer when you truly can't ride outside
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Old 06-28-15, 11:53 PM
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I wipe the tire off with a damp rag when that happens and tighten the roller another 1/2 to 1 full turn. The tire is slipping too much.
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Old 06-29-15, 06:21 AM
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No harm, no foul. Metal rollers, especially aluminum wear with use and the tire picks up the finely divided metal. It wears off the tire again after a few minutes on the road. Just go easy on the road for a little while in case it has made the tire a little slick. The roller will last longer than you, so no worries about that.

Or to stop worrying about the effect on your tires (no need to anyway, but...) just get a cheap spare rear wheel, equip it with a cheap or nearly used up cassettes and a used tire, and switch it back and forth when riding on the road or trainer. You will be glad you have the spare for a host of other reason too.
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Old 06-29-15, 10:05 AM
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I do have a spare wheel and cassette but the power tap is stuck on the wheel I use now.

And also wouldn't slipping cause the tire to degrade and shoot out the black powder? I'm getting the opposite.
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Old 06-29-15, 10:37 AM
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Originally Posted by greenlight149 View Post
And also wouldn't slipping cause the tire to degrade and shoot out the black powder? I'm getting the opposite.
Depends on the tread compound. I have a set of cheap Nashbar tires I use on a trainer wheel with my KK. They wear like iron and get the same silver coating. I was concerned initially, but after about 1500 trainer miles, the roller isn't showing any more wear than when I bought it used.
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Old 06-29-15, 10:39 AM
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Happens to mine (I ride rollers, which are FAR SUPERIOR to trainers, IMO). I suspect it's normal and of no consequence.
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Old 06-29-15, 12:05 PM
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Originally Posted by greenlight149 View Post
I do have a spare wheel and cassette but the power tap is stuck on the wheel I use now.

And also wouldn't slipping cause the tire to degrade and shoot out the black powder? I'm getting the opposite.
Nope, not any more than on the road. You should always protect carpet or valuable flooring with a mat or old sheet. under the trainer.
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Old 06-29-15, 12:41 PM
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Originally Posted by datlas View Post
Happens to mine (I ride rollers, which are FAR SUPERIOR to trainers, IMO). I suspect it's normal and of no consequence.
I ride rollers too, without any issues, but they don't have enough resistance to do hard efforts. I have to do 120rpm to get 300 watts out of it on 53x11.
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Old 06-29-15, 05:27 PM
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Originally Posted by greenlight149 View Post
I ride rollers too, without any issues, but they don't have enough resistance to do hard efforts. I have to do 120rpm to get 300 watts out of it on 53x11.
Try dropping your tire pressure. Will increase resistance if that is your goal.
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Old 06-29-15, 05:30 PM
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Originally Posted by datlas View Post
Try dropping your tire pressure. Will increase resistance if that is your goal.

yep tried that, but it's still not enough resistance for hard efforts. i like it for tempo rides though.
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Old 06-29-15, 05:35 PM
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Over the years, my wife has worn the aluminum shaft on her trainer down. It now has quite a groove in it. Oddly, tire wear not so much. Tire rubber is tough.
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Old 06-29-15, 05:45 PM
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@greenlight149

There was a post about adding magnetic resistance to rollers here

Last edited by mvnsnd; 06-29-15 at 05:50 PM.
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Old 06-29-15, 06:03 PM
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Originally Posted by mvnsnd View Post
@greenlight149

There was a post about adding magnetic resistance to rollers here

thank you for finding that, but i have the elite parabolic rollers, which has plastic, or pvc rollers, so the magnets wont work. thanks though!
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