Re: [MBZ] speed ratings of tires

2009-02-08 Thread ernest breakfield
hanks, Tom Hargrave www.kegkits.com 256-656-1924 -Original Message- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of E M Sent: Sunday, February 08, 2009 9:17 PM To: Mercedes Discussion List Subject: Re: [MBZ] speed ratings of tires >From wha

Re: [MBZ] speed ratings of tires

2009-02-08 Thread ernest breakfield
as i understood it, the speed rating only relates to using the tire for some fixed period of time (70 minutes, or something like that) before cooling down completely; anything longer than that is over spec. if, like so many MBZ drivers do, you drive your car at highway speed or more for more

Re: [MBZ] speed ratings of tires

2009-02-08 Thread E M
--- > From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] > On Behalf Of E M > Sent: Sunday, February 08, 2009 9:17 PM > To: Mercedes Discussion List > Subject: Re: [MBZ] speed ratings of tires > > >From what I've read about the tires originally inte

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Tom Hargrave
: Mercedes Discussion List Subject: Re: [MBZ] speed ratings of tires >From what I've read about the tires originally intended for use on the W140, they were much softer and of higher performance. Due to the weight and size of the car, they wore very fast, and the US market just wouldn't go

Re: [MBZ] speed ratings of tires

2009-02-08 Thread E M
>From what I've read about the tires originally intended for use on the W140, they were much softer and of higher performance. Due to the weight and size of the car, they wore very fast, and the US market just wouldn't got for an expensive tire that had to be replaced every 10,000 miles or so. Th

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Craig McCluskey
On Sun, 08 Feb 2009 19:44:47 -0600 Tom Savage wrote: > ... as long as I go back to Firestone every 6,000 miles so they can > rotate them and steal my metal valve stem caps (again). Maybe you should take the valve stem caps off before you go there. Craig ___

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Peter Frederick
Because when some idiot steals it and drives it at 120 and a tire blows, YOU are liable for his injuries because you put tires on the car that weren't good enough for how fast it would go. Peter On Feb 8, 2009, at 5:38 PM, Kaleb C. Striplin wrote: On, for example, a 140 300SD, tirerack says

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Tom Savage
Tom Hargrave wrote: Kaleb, "Speed rating" is about a lot more then speed. Speed rating also affects how the tires handle. H rated tires have much stiffer sidewalls than S rated tires and since the tires are an active part of a car's suspension, downgrading from H to S rating, particularly the fr

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Allan Streib
I have "Cientra" tires on my 300D, they are an speed rating S and load rating 90 tire, made in Mexico by BF Goodrich. They were cheap, but actually have better snow performance than the Michelin X1 tires I had before these (had to replace them because the bands were separating). I don't think I'v

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Tom Hargrave
d you expect from Wal-Mart? Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -Original Message- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Kaleb C. Striplin Sent: Sunday, February 08, 2009 5:38 PM To: mercedes Mailing List; davesl...@okiebenz.

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Kaleb C. Striplin
The HP's which are a H rated tire cost 84 in that size, the RT which is a T rated tire is 75 Mitch Haley wrote: Kaleb C. Striplin wrote: On, for example, a 140 300SD, tirerack says min speed rating is H=130 mph. Why do you need a tire rated that fast? I think it's because they don't want t

Re: [MBZ] speed ratings of tires

2009-02-08 Thread Mitch Haley
Kaleb C. Striplin wrote: On, for example, a 140 300SD, tirerack says min speed rating is H=130 mph. Why do you need a tire rated that fast? I think it's because they don't want to be blamed for selling you a tire with a lower rating than OEM. What do Altimax HP cost in that size? Mitch. _

Re: [MBZ] speed ratings of tires

2009-02-08 Thread OK Don
My guess (and that's all it is - a guess), is that higher speed rated tires have stiffer sidewalls, and handle higher temps. A heavier car will need stiffer sidewalls, and will generate more heat while driving. Then again, the cars were designed for the autobahn On Sun, Feb 8, 2009 at 5:38 P

[MBZ] speed ratings of tires

2009-02-08 Thread Kaleb C. Striplin
On, for example, a 140 300SD, tirerack says min speed rating is H=130 mph. Why do you need a tire rated that fast? The car is never going to go anywhere near that fast. It really narrows down the selection and raises the price. Why cant a T=118mph tire be used? That opens up alot more tire