Tire size question..
Junior Member
Joined: Aug 2013
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From: San Diego, CA
Photos (such as they are) are attached....my driving ability is hopefully more advanced than my photographic ability! I was on vacation last week, driving up the California coast on Highway 1.......but before you become too jealous, I have to admit it was in my wife's SUV (for cargo carrying capacity) vs the XKR-S that that road was made for!
Veteran Member
Joined: May 2013
Posts: 3,425
Likes: 1,136
From: London, UK
Do they project out past the rim a bit more than the P-Zeros? Might help ease my paranoia about kerbing the durn things - we have narrow streets here, so I need to get close, but not too close, to the kerb.
Senior Member
Joined: May 2013
Posts: 554
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From: Houston
I recently had Michelin Pilot Super Sport tires installed on my XKR-S: 265/35/ZR20 and 305/30/ZR20. The 10 mm extra width both front and rear over the stock size not only looks great, but fits without any clearance problems.
The overall diameter of the new tires are only 0.1" greater in front and 0.2" greater at the rear. Because the new tires are between 99.75% (front) and 99.25% (rear) of the stock size, speedometer error should not be a concern.
Tire weight is the same for the front tires and just 1.5 lbs heaver than stock for the rear, so the active suspension and ABS calibrations should not be adversly affected.
As expected from their use on prior vehicles, the Michelin's are both quieter and slightly more responsive then the Pirelli P Zero's that were original equipment.
The overall diameter of the new tires are only 0.1" greater in front and 0.2" greater at the rear. Because the new tires are between 99.75% (front) and 99.25% (rear) of the stock size, speedometer error should not be a concern.
Tire weight is the same for the front tires and just 1.5 lbs heaver than stock for the rear, so the active suspension and ABS calibrations should not be adversly affected.
As expected from their use on prior vehicles, the Michelin's are both quieter and slightly more responsive then the Pirelli P Zero's that were original equipment.
Awesome car, too. Make sure to check in here, if you want.
https://www.jaguarforums.com/forum/x...egistry-97446/
You will be the first black car on the poll. I know there is another one in my area but he hasn't checked in yet.
Junior Member
Joined: Aug 2013
Posts: 27
Likes: 12
From: San Diego, CA
The front tires now exceed the rim by almost 3/8", and the rear by almost 5/8".....a great improvement!
Member
Joined: Mar 2013
Posts: 30
Likes: 7
From: michigan
Question for Forum Members: I live in MI and drove my 2012 XKR-S last winter on reasonably dry days when there was little salt on the roads. Temps. as low as 20 degrees. Traction obviously poor. I enjoyed driving the car occasionally so much I want to do the same this winter. The question is whether to get the new All Season Michelin Pilot Sp. A/S 3 which performs as well as many summer tires but is only made in a 285 rear as opposed to the stk 295 or buy another summer tire like the 305's Ngarara discusses in his threads? If I was in a warmer climate there would not be a question. I expect the somewhat narrower 285's would yield less traction in the summer but I would have more safely in the winter with the 285 all seasons.
Sorry to bring this up again. I will be installing New chrome 20" Senta Wheels 9.5" / 8.5". and new tires this spring and would like to install larger tires .( I have 19' Jupiter wheels now ) I like the Idea of 295 - 35 rear to fill the wheel opening ,but what about the front can we go larger on the front to get the same affect .if so what size ???
Also would this eliminate the need for spacers and lowering for a better stance . BL
Also would this eliminate the need for spacers and lowering for a better stance . BL
Help needed has done this
Sorry to bring this up again. I will be installing New chrome 20" Senta Wheels 9.5" / 8.5". and new tires this spring and would like to install larger tires .( I have 19' Jupiter wheels now ) I like the Idea of 295 - 35 rear to fill the wheel opening ,but what about the front can we go larger on the front to get the same affect .if so what size ???
Also would this eliminate the need for spacers and lowering for a better stance . & look BL
Also would this eliminate the need for spacers and lowering for a better stance . & look BL
Senior Member
Joined: Oct 2013
Posts: 245
Likes: 45
From: Bay Area, CA
I recently had Michelin Pilot Super Sport tires installed on my XKR-S: 265/35/ZR20 and 305/30/ZR20. The 10 mm extra width both front and rear over the stock size not only looks great, but fits without any clearance problems.
The overall diameter of the new tires are only 0.1" greater in front and 0.2" greater at the rear. Because the new tires are between 99.75% (front) and 99.25% (rear) of the stock size, speedometer error should not be a concern.
Tire weight is the same for the front tires and just 1.5 lbs heaver than stock for the rear, so the active suspension and ABS calibrations should not be adversly affected.
As expected from their use on prior vehicles, the Michelin's are both quieter and slightly more responsive then the Pirelli P Zero's that were original equipment.
The overall diameter of the new tires are only 0.1" greater in front and 0.2" greater at the rear. Because the new tires are between 99.75% (front) and 99.25% (rear) of the stock size, speedometer error should not be a concern.
Tire weight is the same for the front tires and just 1.5 lbs heaver than stock for the rear, so the active suspension and ABS calibrations should not be adversly affected.
As expected from their use on prior vehicles, the Michelin's are both quieter and slightly more responsive then the Pirelli P Zero's that were original equipment.
Does anyone have any additional head-to-head comparison findings on the PZeros vs Pilot SuperSports? Dry traction is my 1st, 2nd, and 3rd criterion
Thanks,
Rich
Last edited by Rw99; Nov 4, 2014 at 08:30 PM.
Senior Member
Joined: Feb 2012
Posts: 375
Likes: 63
From: Southern california
I'll be switching to michelin PSS (from P0's) in the next month or 2. I'm not sure if I'm going with the bigger size yet- it will depend partly on availability. I'll let you know my thoughts when I do
Member
Joined: Oct 2013
Posts: 78
Likes: 21
From: Wash DC Metro
Anothe Tire Option to consider
I use Vredestein tires as suggested by others in this Forum. The grip is tremendous in both dry and wet conditions. The look is also a big plus. I have about 5,000 miles on them now and love them. Quiet too. I would definitely buy them again.
Member
Joined: Oct 2013
Posts: 78
Likes: 21
From: Wash DC Metro
21 Inch Wheels on an XKR
Has anyone tried fitting 21 inch wheels onto a 2010 XKR? Normally I would not consider doing this but I found a wheel I love but it is not made in 20".
By the way, I have lowered the car by 35mm. It seems these would fit on the front but probably too tight in the rear.
Anyone with answers?
By the way, I have lowered the car by 35mm. It seems these would fit on the front but probably too tight in the rear.
Anyone with answers?
Veteran Member
Joined: Aug 2010
Posts: 2,367
Likes: 601
From: California
Has anyone tried fitting 21 inch wheels onto a 2010 XKR? Normally I would not consider doing this but I found a wheel I love but it is not made in 20".
By the way, I have lowered the car by 35mm. It seems these would fit on the front but probably too tight in the rear.
Anyone with answers?
By the way, I have lowered the car by 35mm. It seems these would fit on the front but probably too tight in the rear.
Anyone with answers?
Senior Member
Joined: Apr 2009
Posts: 274
Likes: 54
Usma.......what pressure are you running your Ultracs at?? I've just fitted some on the back of my 2010 XKR and found them to have quite alot of sidewall flex at 36psi.....now running at 38psi.....have come from the factory Dunlop SP sport maxx. Grip of the Vredesteins has blown me away though....in the wet they are amazing!!! Do you have the Ultracs all round? Any tramlining on the fronts??
Cheers!!
Cheers!!
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