I am ready to replace my Michelin Pilot Super Sports on my 2008 XKR. Big Problem! The 285/30ZR/20s have been back-ordered since October and nobody seems to know when they will get them. And since my Sentas are only 9.5j wide I don't think the 295/30ZR/20s will fit properly. I really don't want to go down to the 275s.

Has anyone tried the 295s on the Senta, Nevis, Kalimnos, or Selena wheels?

 

I'm running that size on 11" wheels but I believe there are a few members here running the 295s on the 9.5" wheels.

 

I am running 285/35/20's on a 10" wide rim. No reported problems.

 

You can go onto TireRack website for suggestion and even call their tire experts for fit recommendations.

I personally think that the 9.5 wide rims are too narrow for the 295 tires. I am pretty sure that they could squeeze the 10mm wider tire onto the 9.5 rims but, it would likely distort the thread profile enough to make it less then ideal. It was easier to fit oversized tires when the sidewalls were taller compared to these ultra-short sidewall tires that our Jags are using.

 

Can't give you a definitive answer, but this calculator:

Tyre Calculator

says that 295/30/20 fits 10x20" to 11.5x20". Other sites claim that the widest you can go on a 9.5x20" is 275 - obviously wrong since the stock XKR runs 285s, but it indicates that 285 is at the outer edge of the envelope. So I think the 295 is probably going to be a bit squished on a 9.5" rim.

 

Totally Agree......on the OEM 9.5" rim I would select the 285 tire.

 

I'm having now 295/35 (so also bigger in diameter, as stock is 30) on a 10" rim, and its already border line on looks as the tire becomes wider then the wheel, and will also look different as the front wheel. Best to check pictures 1st of those who have done this on the 9.5" rims.

 

After contacting Michelin regarding my plight in finding 285/30Z/20 Super Sports I got the following reply:



In regards to the email you sent stating:
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I have Michelin Pilot Super Sport tires on my XKR and need to replace my rear tires which are 285/30ZR/20 and can not find them anywhere. When and where can I find them? I need them badly!

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We apologize the Michelin Pilot Super Sport tire model in tire size 285/30ZR20 is not available for retailers to order at this time. We do show that production finally started on 4/27/2014 and we should have available stock within the next 3-4 weeks. Please accept our most sincere apology!

 

Just mounted my 295/30r20s on the rear of my 2011 xkr....looks and rides great

 

You're lucky! Pilot Super Sports are so poor that they can conceivably kill you. Not kidding. Junkiest tires I've ever owned. I will never in my life buy any Michelin tire again. Ever.

 

Used Pirelli P Zeros .... they are on the kalimnos

 

Say mate could you post a pic. What wheels were these? what does the sidewall look like?

 

Gives it a stouter look

 

 

Big Thanks! many of us have wondered if it would work.

 

the most important number is the overall tire diameter. if you are comfy there...have at it. the tire OD is also a number that the tire rack cites in the tire specs. in my history, the width you are contemplated is not an issue ( my Porsche 930 has 315's on the 11" rear wheels) but you want to make sure the tire OD is not a huge difference from stock...a bit larger is generally fine (~1/2") but do not go smaller than the OEM tire OD.


~1/2" increase in tire OD actually makes your speedo more accurate

 

Useful calculator here:

Visual Tyre Size Calculator | Kouki Tech

Shows you the effect on speedo reading.