And I thought we had bad roads. Potholes here are big, but never bent a rim,
so guess that will be coming as out s**t for brains govenor has covered his
ill thought out tax plan's staggering losses by raiding the highway fund to
support K-12 education. I'm not a big believer in term limits, but glad he
would be out in two years, although a year would be better, 10 minutes best.
-----Original Message-----
From: Martin Walters
Sent: Saturday, July 09, 2016 12:35 PM
To: Olympus Camera Discussion
Subject: Re: [OM] posting about tyres
Bill: You are right. Not necessary for most cars, though a good number
of cars need 130/150 mph ratings as they can be driven (theoretically)
that fast. However, the public wants the big rims, which means low
profile tyres. I've just replaced one of mine after hitting a pothole
driving through PA this spring. Also needed to get the rim straightened.
Apparently, the alloy rims are designed to bend before the
suspension....... Oh well.
On 09/07/2016 1:00 PM, Bill Pearce wrote:
Actually there is something else. I've learned something, having owned two
cars with low profile tires and odd sizes. Low profile tires are like a
beautiful blonde, sexy, beautiful, and impressive on one's arm, but still,
expensive, fragile and in need of far too frequent replacement. Totally
impractical. Who really needs a tire (tyre) speed rated for 250 mph?
-----Original Message----- From: Chuck Norcutt
Sent: Saturday, July 09, 2016 5:36 AM
To: Olympus Camera Discussion
Subject: Re: [OM] posting about tyres
Thanks, all. I've learned some things here about tires that I should
avoid.
Chuck Norcutt
On 7/9/2016 5:22 AM, Martin Walters wrote:
A significant number of 'performance' cars now have staggered wheels
(i.e., wider at the back and, as a result, a lower profile tyre/tire, in
order to maintain a constant rolling radius). That's what my MB C350
has. The Pirelli tyres are, mercifully, neither unidirectional
(symetrical tread pattern but one direction of rotation) nor
asymmetrical (a tread pattern that changes across the tyre, as in
Brian's example). At least they can be rotated from side to side on the
same axle.
My aftermarket winter tyres and rims, however, are all the same size, so
can be rotated at will, except that the tyres (Michelins) are
unidirectional, and can only be rotated front-back. While this
arrangement is inconvenient, I've managed to equalize wear reasonably
well around the car (and for the winter tyres on my Toyota).
Where I do have a problem, is with the move to run-flat (RF) tyres
(e.g., on Canadian MBs, Audis and BMWs at least) on new cars. These cars
do not carry a spare (I don't know if they even have a jack). RF tyres
have a range of 60-100 km when deflated, depending on to whom one talks.
The OEM RF tyres on MB, and the other German brands, also have subtle
differences specific to that make of car, all in a effort to reduce the
harsh ride of low-profile RFs. I could easily be 60 km from the nearest
MB dealer or a large tyre shop. What do I do if I get a flat? Where do I
get a new tyre, especially on a weekend? Personally, I think the car
makers offer RFs as standard should provide 24 hour roadside assistance
as part of the cars warranty. I have not yet had this conversation with
MB.
Martin
On 09/07/2016 3:13 AM, Bill Pearce wrote:
My Lexus has larger tires (tyres) in the rear, but still carries a
spare. That bothers me less than the fact that from the factory they
come with totally asymmetrical tires, i.e. ones that turn only one
direction, so there is no rotation possible. Finding ones that can go
from side to side is a challenge.
But the good news it that it doesn't have run flats. don't get a nail
in a run flat. Happened to a friend, and that was an over $500 lesson.
-----Original Message----- From: Jez Cunningham
Sent: Saturday, July 09, 2016 2:01 AM
To: Olympus Camera Discussion
Subject: Re: [OM] posting about tyres
Nope. ChrisB explained that the front and rear pairs are different
widths/profiles.
Only a realistic option when you don't need to carry a spare (i.e.
they're run-flat.)
Jez
On 09/07/2016, bj@xxxxxxxxxxxxxxx <bj@xxxxxxxxxxxxxxx> wrote:
A little while ago Chris B told us about fitting asymmetric tyres on
his new Beemer.
It seemed to me that nobody knew what he was talking
about.
Well, a few months ago I had to fit new tyres all round on my
Range Rover P38, and I did what he did, and now, like Chris, in
hindsight regret it.
Here's a picture of the tread on my right front
tyre http://zone-10.com/tope2/main.php?g2_itemId=20389
Notice that the
tread pattern on the RHS of the tyre is very different from the LHS
(interior) side of the tyre.
They WILL grip very well during highway
cruising, BUT if you have a puncture and therefore need to fit another
wheel, unless you fit an asymmetric tyre, you could be in trouble.
They are supposed to be fitted in pairs on the same axle.
These are
Michelin Latitude 255 65 R16
Cheers, Brian
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