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#4331968 - 02/17/17 12:23 PM Tyres for Jaguar XJR?
Finn Offline


Registered: 03/01/10
Posts: 428
Loc: Finland
Cheers!

Stock tyres for my XJR are 255/40-18. They are not so common - available, though but quite expensive. Also, very wide and low profiled for our somewhat rough roads.

Several Jaguar owner have told that they have gone with a slightly narrower tyre. I have been playing with a tyre calculator and would be interested to get either 245/40-18 or 245/45-18 tyres.

Two interesting alternatives were offered me today: Goodyear Eagle F1 Asymmetric 3 and Michelin Pilot Sport 4.

Pricewise they are about the same.

Any opinions/experiences of either of these, please?
_________________________
1994 Volvo 850 T-5 estate | 2000 Jaguar XJR | 1978 Corvette 427" | 1986 Corvette 383" | 2003 FLHR | 1996 ZJ 4.0 I6

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#4331975 - 02/17/17 12:31 PM Re: Tyres for Jaguar XJR? [Re: Finn]
Quattro Pete Offline


Registered: 10/30/02
Posts: 33278
Loc: Great Lakes
Originally Posted By: Finn
Cheers!

Stock tyres for my XJR are 255/40-18. They are not so common - available, though but quite expensive. Also, very wide and low profiled for our somewhat rough roads.

Several Jaguar owner have told that they have gone with a slightly narrower tyre. I have been playing with a tyre calculator and would be interested to get either 245/40-18 or 245/45-18 tyres.

245/40 has an even shorter sidewall than 255/40, so I would scratch this one off your list.
If the 245/45/18 has at least as high load rating as the stock 255/40/18, then this could be a viable option.

Quote:
Two interesting alternatives were offered me today: Goodyear Eagle F1 Asymmetric 3 and Michelin Pilot Sport 4.

Based on what I've read, I think I'd go with the Pilot Sports.
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'02 530i (Edge HM 10W-40)
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#4331992 - 02/17/17 12:55 PM Re: Tyres for Jaguar XJR? [Re: Quattro Pete]
Lolvoguy Offline


Registered: 02/06/14
Posts: 1363
Loc: Canada
Originally Posted By: Quattro Pete

Based on what I've read, I think I'd go with the Pilot Sports.
_________________________
07 Focus ZX4 SES- Wife
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#4332005 - 02/17/17 01:02 PM Re: Tyres for Jaguar XJR? [Re: Finn]
nthach Offline


Registered: 01/02/04
Posts: 2444
Loc: California
The Pilot Sports will give your cat a fresh set of claws.

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#4332110 - 02/17/17 02:40 PM Re: Tyres for Jaguar XJR? [Re: Finn]
Old Mustang Guy Offline


Registered: 11/16/05
Posts: 845
Loc: Rockwall, Texas
How about 255x45x18? Barely taller with a little more sidewall. Common size. I have them on my Mustang GT.

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#4332230 - 02/17/17 05:13 PM Re: Tyres for Jaguar XJR? [Re: Finn]
BrocLuno Offline


Registered: 09/06/15
Posts: 3128
Loc: Kalifornia Kollective
50% of the ride quality of a car is in the tires ... I'd dump the 18's as fast as I could and get the smallest diameter alloy rims that will fit over your brakes. Width can stay same. Then do tires on those. Sidewall makes for ride on rough'ish roads. Something in the 55 or 60 aspect ratio will help immensely.

If you are not doing track days, 40's are not needed on public roads...


Edited by BrocLuno (02/17/17 05:13 PM)
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4332293 - 02/17/17 06:27 PM Re: Tyres for Jaguar XJR? [Re: Finn]
DoubleWasp Offline


Registered: 05/21/12
Posts: 4057
Loc: Fort Lauderdale, FL
Broc, the problem is that going to a smaller wheel size will put him into even more of a bind when it comes to tire selection.

Smaller wheels on big cars is not common enough anymore for tire makers to care about making a good tire anymore.

But with his 12.8" or 14" (Brembo package) rotors, he is not going to get much smaller.
_________________________
2007 Lincoln Navigator M1 0w-40/FU
1968 Charger R/T / Supercharged 440 VR1/DBL7349
2007 Ram 3500 4x4 / Cummins 6.7 /DBL7349
2015 Porsche 911 C4S PDK

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#4332401 - 02/17/17 08:14 PM Re: Tyres for Jaguar XJR? [Re: BrocLuno]
rooflessVW Online   content


Registered: 12/24/11
Posts: 2076
Loc: North Carolina
Originally Posted By: BrocLuno
50% of the ride quality of a car is in the tires ... I'd dump the 18's as fast as I could and get the smallest diameter alloy rims that will fit over your brakes. Width can stay same. Then do tires on those. Sidewall makes for ride on rough'ish roads. Something in the 55 or 60 aspect ratio will help immensely.

If you are not doing track days, 40's are not needed on public roads...

And it'll look like a$$... LOL

Not to mention it won't clear his brakes. This ain't a Camry. OP, the Michelin PS4 would serve you well. I'm assuming based on your location that you have summer/winter setups?
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"Zed's dead baby, Zed's dead."

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