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Old 08-06-10, 06:35 PM   #1
jasonball
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Tire wear question

I have bontrager select b tires on my trek. I'm starting to notice the contact surface on the rear is starting to get flat instead of curved. is this normal. and it is time to replace them. I bought the bike in the end of may and have about 600 miles on it so far. any suggestions would be great. or a possible solution. if this seems like dumb question. well I'm pretty new to cycling so forgive me I will catch on. thanks
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Old 08-06-10, 07:38 PM   #2
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This is a normal wear pattern for many rear tires. Some riders are very bothered by it and are sure it alters the bikes handling. I've never seen any problems with it and continue to use the tire until the tread rubber is worn through and the casing threads show at one spot.
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Old 08-06-10, 07:47 PM   #3
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Some people (myself included) buy tires three at a time. When the rear tire shows the wear you are describing (1/4" 'flat'), put the third (new) tire on the rear, and use the 'worn' tire for a spare.

When you decide the Bontragers are 'done for', find something a little tougher, and with lower rolling resistance--Continental makes a few, and you should get longer wear from them.

Last edited by badamsjr; 08-06-10 at 07:57 PM.
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Old 08-06-10, 07:49 PM   #4
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I have bontrager select b tires on my trek. I'm starting to notice the contact surface on the rear is starting to get flat instead of curved. is this normal. and it is time to replace them. I bought the bike in the end of may and have about 600 miles on it so far. any suggestions would be great. or a possible solution. if this seems like dumb question. well I'm pretty new to cycling so forgive me I will catch on. thanks
Those tyres suck anyways. Any tyre worth more than $20 will roll faster and provide a better ride. Cheapest bang for the buck upgrade you can make for your bike.

The difference in ride between a 320tpi open tubular vs a crappy $20 clincher is enormous.
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Old 08-06-10, 08:05 PM   #5
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Be sure to fully inflate your tires before each ride.
Those are not my favorite tires either.
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Old 08-06-10, 08:07 PM   #6
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okay now i'm cofused. i thought i was supppose to be using clinchers.
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Old 08-06-10, 08:08 PM   #7
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yeah it says 100 psi but I usually put 115. becuase 100psi just seems squishy. but maybe that is becuase they are cheap tires.
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Old 08-06-10, 08:33 PM   #8
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okay now i'm cofused. i thought i was supppose to be using clinchers.
That was "Operator speak" for there are big differences in tires and "you could do better".
Yes, you will have to stick with clinchers.
When I replaced my wife's Bontrager tires with Michelin Pro Race tires she said it was the best thing I had ever done for her.
I'm still thinking about that.
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Old 08-07-10, 10:55 AM   #9
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okay now i'm cofused. i thought i was supppose to be using clinchers.
The term he used was "open tubulular" and that's a fancy term for a clincher tire made to behave more like a tubular.
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Old 08-07-10, 12:27 PM   #10
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Hey HillRider, I'm going to have to try some of those "tubulular" tires.
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Old 08-07-10, 05:32 PM   #11
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Ride the tire until it wears out. Buy a new one and put it on the front and move the front to the rear.
Pressure is a function of tire width and vehicle weight.
https://www.adventurecycling.org/res...SIRX_Heine.pdf
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Old 08-07-10, 05:57 PM   #12
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There are some decent budget tires but you need to pick and choose. I've had some expensive tires in my time and some bottom feeder tires. I found that Continental Ultra Sport provides a darn good ride and they are often found on sale for under $20 a tire. I've also had a few other brands, and some version of a Bontrager was one of them, that I wouldn't use for tieing down a load of junk going to the dump. The bad ones didn't get a chance to wear out just because I found them to be so draggy that I replaced them before they had a chance to wear out. Or in one case they were just so prone to flats that I replaced them.

The other way I've seen to switch out tires is to replace the rear with the front and then put the new tire onto the front. Rears wear out about twice as fast as the front so this works out not too badly.
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