if your thinking about fitting the new run flat tyres to your vehicle, note
they should only be fitted to vehicles that have a tyre pressure monitoring
system fitted, report below.

"Fitting run-flats to a car not designed for them is inadvisable at best,
according to the Tyre Industry Council (TIC).

A car's suspension is specifically tuned for SST run-flat tyres for maximum
safety, performance, handling and ride quality. SST Run-flat tyres must only
be fitted in conjunction with a tyre pressure monitoring system to ensure
that a tyre deflation is communicated to the driver at the earliest possible
moment. Failure to do so could result in a tyre being run in a deflated
condition for longer than the recommended period and the driver left in
ignorance of a tyre's condition.

Retrofitting of SST run-flat tyres may also compromise the ride
characteristics of the vehicle to which they have been fitted because few
older vehicles have been designed with run-flat fitment in mind.

An example pointed out to the TIC recently involved the fitment of a set of
run-flat tyres to a 10 year old vehicle not fitted with a tyre pressure
monitoring system. The car suffered a puncture and the driver was unaware of
the deflated tyre, which was run in this state for some time, and the car
failed its MOT because of damage to the tyre. This could have had serious
legal implications if the vehicle had been involved in an accident.

All major tyre manufacturers producing SST run-flat tyres, along with all
major tyre retailers, recommend against fitting run-flat tyres to vehicles
not originally designed with this type of tyre in mind.

Self supporting run-flat tyres must never be mixed with standard tyres on
any vehicle."

In news:daccll$i80$1@news8.svr.pol.co.uk,
reg  decided to enlighten our sheltered souls 
with a rant as follows

> if your thinking about fitting the new run flat tyres to your
> vehicle, note they should only be fitted to vehicles that have a tyre
> pressure monitoring system fitted, report below.

> All major tyre manufacturers producing SST run-flat tyres, along with
> all major tyre retailers, recommend against fitting run-flat tyres to
> vehicles not originally designed with this type of tyre in mind.
>
> Self supporting run-flat tyres must never be mixed with standard
> tyres on any vehicle."


If you've ever driven a 645 BMW on run flat tyres, you'll know not to 
specify them.

They're bloody awful, like they're filled with concrete.

(The tyres, not the BMW..)
-- 
Pete M

Range Rover Vogue SE, Ford Capri (ressurection stalling)
Porsche 911 3.2 (For Sale)

COSOC #5
Scouse Git extraordinaire. Liverpool, Great Britain

On Tue, 5 Jul 2005 00:16:51 +0100, "Pete M"
 wrote:


>In news:daccll$i80$1@news8.svr.pol.co.uk,
>reg  decided to enlighten our sheltered souls 
>with a rant as follows
>> if your thinking about fitting the new run flat tyres to your
>> vehicle, note they should only be fitted to vehicles that have a tyre
>> pressure monitoring system fitted, report below.
>
>> All major tyre manufacturers producing SST run-flat tyres, along with
>> all major tyre retailers, recommend against fitting run-flat tyres to
>> vehicles not originally designed with this type of tyre in mind.
>>
>> Self supporting run-flat tyres must never be mixed with standard
>> tyres on any vehicle."
>
>If you've ever driven a 645 BMW on run flat tyres, you'll know not to 
>specify them.
>
>They're bloody awful, like they're filled with concrete.
>
>(The tyres, not the BMW..)


Bloke at work was saying he had come adrift on a bend at the weekend.
New Mini fitted with run flat's had not shown any warning but was
totally flat on one rear tyre.  Had him from nearside lane to offside
rubble strip and back to nearside rubble strip on a dual carriageway
before he got it straight.  He thinks it uses a difference in wheel
speed and not pressure to detect a flat and light warning.

"Peter Hill"  wrote in message 
news:cihjc11ab3qs9g3qj0s29ufn02e48536ue@4ax.com...

> On Tue, 5 Jul 2005 00:16:51 +0100, "Pete M"
>  wrote:
>
>>In news:daccll$i80$1@news8.svr.pol.co.uk,
>>reg  decided to enlighten our sheltered souls
>>with a rant as follows
>>> if your thinking about fitting the new run flat tyres to your
>>> vehicle, note they should only be fitted to vehicles that have a tyre
>>> pressure monitoring system fitted, report below.
>>
>>> All major tyre manufacturers producing SST run-flat tyres, along with
>>> all major tyre retailers, recommend against fitting run-flat tyres to
>>> vehicles not originally designed with this type of tyre in mind.
>>>
>>> Self supporting run-flat tyres must never be mixed with standard
>>> tyres on any vehicle."
>>
>>If you've ever driven a 645 BMW on run flat tyres, you'll know not to
>>specify them.
>>
>>They're bloody awful, like they're filled with concrete.
>>
>>(The tyres, not the BMW..)
>
> Bloke at work was saying he had come adrift on a bend at the weekend.
> New Mini fitted with run flat's had not shown any warning but was
> totally flat on one rear tyre.  Had him from nearside lane to offside
> rubble strip and back to nearside rubble strip on a dual carriageway
> before he got it straight.  He thinks it uses a difference in wheel
> speed and not pressure to detect a flat and light warning.


If that's how he thinks it woks than he is completely and utterly right. (Well 
on the mini). It's quite odd that it didn't pick it up as I find the warning 
light only needs a few PSI difference before the light comes on. Oh and was it 
the left rear? (Had 3 Minis and 4 sets of wheels and that one always seems to be 
the one to cause the warning light to come on.)