Tires, tires, tires

7018 messages, Last post on Mar 07, 2010 at 4:04 AM

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What is this discussion about? Tires, Wheels, Steering

Edmund's Feature Article: Tire Safety: Don't Ignore the Rubber on the Road

For dedicated winter tires, also have a look at the Snow/ice winter tires discussion topic.

Outline

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#6999 of 7018 part 2 by stickguy Oct 03, 2009 (1:31 pm)
actually, the issue with fitting will be the width of th erim. Tires usually fit a range of widths, but it is possible the 175 might be too narrow if the 185 is the minimum width for your rims. Replies to this message: oregonboy (Oct 03, 2009 2:44 pm)
#7000 of 7018 Re: part 2 [stickguy] by oregonboy Oct 03, 2009 (3:44 pm)
Replying to: stickguy (Oct 03, 2009 12:31 pm) I would think that the load rating might be a deal breaker. Some places might not be willing to mount tires with less than the car manufacturer's recommended load capacity. If you can possibly afford it, either new tires, or near-new, factory "take-offs" would be a much safer choice.
#7001 of 7018 Re: size [stickguy] by prasadp Oct 04, 2009 (6:16 am)
Replying to: stickguy (Oct 03, 2009 12:29 pm) Thank you stickguy.
#7002 of 7018 Need New Tires 2003 Toyota Avalon by kkovak Oct 29, 2009 (6:46 am)
I need to replace the tires on my 2003 Avalon which has ~60K miles on it. Driving is split 50/50 highway and city with the highway usually not over 80-85 mph. Can anyone recommend a couple of good alternatives? Thanks Ken Replies to this message: rcarr7 (Oct 29, 2009 6:04 am) mz6greyghost (Oct 29, 2009 6:57 am) kkovak (Oct 29, 2009 8:13 am) woodyww (Oct 29, 2009 11:24 am)
#7003 of 7018 Re: Need New Tires 2003 Toyota Avalon [kkovak] by rcarr7 Oct 29, 2009 (7:04 am)
Replying to: kkovak (Oct 29, 2009 5:46 am) Funny, but what I would recommend for the Avalon, happens to fit 2 entirely different cars and sizes (VW TDI's) 1. Michelin Primacy MXV4 2. General Altimax HP If price is an issue, item #2 is $43. cheaper per tire or -$172. per set of 4.
#7004 of 7018 Re: Need New Tires 2003 Toyota Avalon [kkovak] by mz6greyghost Oct 29, 2009 (7:57 am)
Replying to: kkovak (Oct 29, 2009 5:46 am) Any winter driving involved? Or is it all just dry and wet conditions WITHOUT snow/ice? Replies to this message: kkovak (Oct 29, 2009 8:13 am) woodyww (Oct 29, 2009 11:24 am)
#7005 of 7018 Re: Need New Tires 2003 Toyota Avalon [mz6greyghost] by kkovak Oct 29, 2009 (9:13 am)
Replying to: mz6greyghost (Oct 29, 2009 6:57 am) Yes, snow and ice would be present here in Eastern Pennsylvania. We don't force ourselves to drive much in snow and ice, just if caught out in it. THanks Ken Replies to this message: woodyww (Oct 29, 2009 11:24 am)
#7006 of 7018 Re: Need New Tires 2003 Toyota Avalon [kkovak] by woodyww Oct 29, 2009 (12:24 pm)
Replying to: kkovak (Oct 29, 2009 8:13 am) What are the current tires on your Avalon? Were you happy with them? Have you checked tirerack.com for tires for your car? Great resource. Also, We don't force ourselves to drive much in snow and ice, just if caught out in it. It only takes a few times per winter for snow and ice performance to matter......
#7007 of 7018 Grooves in concrete hurt tires & mpg? by jipster Jan 07, 2010 (8:35 pm)
Lately I've noticed that new concrete being laid down on interstates and highways has heavy grooves(maybe 1/4 or 1/8 inch deep) running either vertically or horizontally the full width of all lanes. I suppose this is for better traction and maybe drainage. I would think that running tires over this would shorten their life... over say concrete that hasn't been roughed up. To what degree it would shorten a tires life is a guess... maybe a couple thousand miles over the life of the tire? Also, the rougher surface seems like it would influence the mpg of cars riding on the surface, say a half a mile a gallon of gas less. It would also seem the horizontally grooved lines in the road would hinder mpg more than vertical lines. Anybody else notice this, or do I just have too much time on my hands? I know weird questions, but this discussion has been dead now for a couple months, most unusual. Replies to this message: capriracer (Jan 08, 2010 4:59 am)
#7008 of 7018 Re: Grooves in concrete hurt tires & mpg? [jipster] by capriracer Jan 08, 2010 (5:59 am)
Replying to: jipster (Jan 07, 2010 7:35 pm) 1) Most tire wear occurs in cornering. Driving straight ahead is practically free. That means the grooves in the pavement aren't going to have much effect on the wear rate. 2) Rolling resistance is mostly a function of the amount of deflction that takes place in a tire. That means that grooves in the pavement aren't going to have much effect because the deflection is mostly a function of the load and pressure of the tire, and very little with the friction developed by the contact patch. 3) There is a term called "Groove Wander", also referred to as "Tramling", where the tire tends to follow the grooves in the pavement. Needless to say, cross wise grooves (grooves crossing the direction of travel) would have no effect, but grooves in the same direction of travel will line up with the grooves the tire and sometimes cause this phenomenon. Since the dsicovery of this phenomenon, most pavement grooving patterns (the width and the spacing) have been standardized enough so the tire manufacturers can space the grooves in their tires such that there isn't a noticeable problem. However, occassionally, an odd combination of pavement vs tire will occur and the phenomenon will appear. From what I have been able to tell, groove wander is the only problem will grooved pavement.