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When to replace tires?(10 posts)

When to replace tires?spinmaster
Mar 20, 2003 2:45 PM
I used my trainer frequently over the winter and my rear tire has worn considerably. There is no tread left in the middle of the tire and it is noticably more bare than the front tire. Should I switch the two for returning to outdoor riding or buy new tires? Thanks for any suggestions. Also, what is the average lifespan (in miles) for a typical tire?
re: Replace the rearwackycyd
Mar 20, 2003 2:49 PM
just get a new rear tyre, and save the worn one for trainer use for next winter.

Also, what is the average lifespan (in miles) for a typical tire?

> depends what tyres they are, Michelin ax. pro's are good for a few thousand.
few thousand what?feet!nmthe bull
Mar 21, 2003 12:46 AM
few thousand what?feet!nmwackycyd
Mar 22, 2003 6:48 AM
typical response I expected and guess who, non other than the bull, should be more like full of bull!!
re: When to replace tires?Eric_H
Mar 20, 2003 3:32 PM
Provided your front tire is in good condition with no significant cuts, I would rotate it to the rear and buy a new front of the same brand. This is my preferable way of replacing tires, especially on wheels I use for training where the mileage is high. Keep the newest tire on the front wheel and then rotate it through to the rear when the rear needs replacing. Once a tire is worn out on the rear I chuck it.

If you use your trainer a lot, it is good to buy a cheaper rear tire for trainer use. However, a lot of cheap tires can also be very non-round and that creates uneven grip on the trainer, and also makes noise. I have found Michelin and Conti tires to be better for roundness than Vredestein or Vittoria, in the cheap models especially.

As to mileage, it varies. I once wore an Axial Pro right through to the cords, and it took about 3000 km on the rear. I raced a crit very close to home, finished it, rode home and then noticed the cords as I was wheeling the bike inside. Continental tires will generally have a longer tread life (5000-6000 km on a Conti Ultra 2000), though the older tires were very susceptible to sidewall damage. Vredesteins will be somewhere in the middle, a little longer life than Michelin, but less than Conti. I cannot really speak for other tires, as these are the ones I have the most experience with.
The definitive answer: it depends!Kerry
Mar 20, 2003 5:20 PM
There's no predicting wear unless you know rider weight and tread thickness. At 180 lb, I get about 2K miles on a rear Conti GP 3000, while my 125 lb wife gets double that or more. With a Conti GP (much thicker tread) I get double that mileage or more and my wife easily exceeds 10K miles.
Mar 21, 2003 6:19 AM
That's way more than I would have guessed. For the record, though, I don't think that I've ever worn out a Continental tire. I've always cut down a sidewall or something like that while it still had useable tread remaining.
That's been my experience too.dzrider
Mar 21, 2003 10:10 AM
Any time a tire has a cut deep enough to bump up, I scrap it.
The first cut is the deepestKerry
Mar 22, 2003 9:01 AM
I hear about sidewall cuts in Conti tires, and Contis do have thinner sidewalls than Michelins (that's why the GP lasts so much longer, the weight of the tire is in the tread instead of the side wall). However, how do you guys get all these sidewall cuts. Looking at the tire sitting on the road, an object would have to be at least 1/2" long AND braced against the road in order to gouge the side wall. Does this come from road debris (car parts, etc.), gravel, or what? I ride around that sort of stuff, especially the gravel, so I just don't get sidewall cuts. I've not had one in the 40K + miles that I've been on clinchers, and the ones I (rarely) got on tubulars seemed to be as much from casing failure as from an actual cut.
I don't know what has caused the cuts I've experienced.Spoke Wrench
Mar 22, 2003 11:41 AM
Also, I'm not talking about ruining more than one or two tires at most per year. My point is that in the past, with Continental tires, I've always seemed to get a caseing cut before the tire tread wore out.

I don't have anything against Continental tires. In fact, if I were in the market for tires today, I think that I'd try a pair of Gatorskins. Right now, however, I have a few other tires to use up before I buy anymore.