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Tire size

standby-V

Seasoned Member
Joined
Oct 16, 2008
Messages
1,114
Location
Mesquite, NV
My XLR/V(s)
2004 Lt. Platinum & 2006 Lt. Platinum XLR-V
I'd say stock wheels only or they will bulge out and not look good and you will be dealing with possible rubbing on the inner liners. It's tough to shell out money for wider tires and have things go wrong.
What is the widest tire you can put on the 2004 stock wheels.
 

cubby558

Seasoned Member
Joined
Oct 17, 2008
Messages
2,752
Location
IL
My XLR/V(s)
'16 Z06, "06 XLR-V Infra Red-Sold, RII, RIII & RIV survivor, Mdwst Maurader
Regardless of whether you have a standard XLR or the XLR-V; I believe the width of the rims are all the same.(I think 8") The V's sport 235's on the front and 255 on the rears with 19" rims. So I would think putting 255's on the standard XLR wheels (18") is not a problem. I would check with someone like Tire Rack etc. to find out the widest tire for your rims.

As standby states-when you put wider tires on rims the sidewalls tend to 'bulge' and you also may make the tires stand taller, messing up your speedo.
 

hawk

Member
Joined
Aug 7, 2009
Messages
5
Location
Oregon
My XLR/V(s)
2004 Crimson
I have 255/45 18 on mine and dont seem to have any problems. They were on the car when I bought it though. Looks like the guy might have run them a little low on air, all the tires seem to have slightly more tread in the center section.
 

b_pappy

Seasoned Member
Joined
Oct 17, 2008
Messages
588
Location
Northridge, CA
My XLR/V(s)
2005 XLR
I am contemplating a similar switch.
The base XLR rim is 18 x 8.0 with 235/50-18 tires. (27.3 dia & 9.7 wide)
The V uses 19 x 8.5 rims with 235/45-19 tires front & 255/40-19 tires rear.
Using the stock V Pirelli tires the rear tire is a 27.0 dia & 10.6 cross section. I think the rub (so to speak) is the front tires, with a 9.7 wide base & 9.4 wide V tire. If that all makes sense.
I really don't want to run different size tires front & rear. I found a Michelin Pilot Sport in 255/40-19 that measures 27.0 dia and 10.2 wide cross section. That almost sounds like it would fit, sure would be nice to know in advance.
Assuming Hawk is running a Michelin, his 255/45-18 measures 26.9 dia x 10.3 wide. Hawk, what brand are you running? Any rubbing issues?
Bruce
 
S

speedway

Guest
I know in the past if you were to go to tire rack or discount tires site you can put your car model year etc and they will list the tires that will fit your car and functionaly work. If they dont have that then you can go there shop and they will look at there service computor and tell advise you.

Fred:wave:
 

hawk

Member
Joined
Aug 7, 2009
Messages
5
Location
Oregon
My XLR/V(s)
2004 Crimson
it currently has continental sport contacts (which I dont like) looking at bridgestone 960 as pole positions. no rubbing issues that i have noticed.
 

cubby558

Seasoned Member
Joined
Oct 17, 2008
Messages
2,752
Location
IL
My XLR/V(s)
'16 Z06, "06 XLR-V Infra Red-Sold, RII, RIII & RIV survivor, Mdwst Maurader
Sounds like you're one of the brave--running non run-flats. Good luck to you. I'd hate to have my V towed because a flat. Too many road hazards out there these days.:(

it currently has continental sport contacts (which I dont like) looking at bridgestone 960 as pole positions. no rubbing issues that i have noticed.
 

richardyoo

Seasoned Member
Joined
Jan 1, 2009
Messages
308
Location
Houston, TX
My XLR/V(s)
2006 Silver XLR-V
Sounds like you're one of the brave--running non run-flats. Good luck to you. I'd hate to have my V towed because a flat. Too many road hazards out there these days.:(

I'm also running on non-flats now... and the ride is SO much better and I rarely get tire slippage now... additionally, it deals with wet pavement better as well. The run-flats are terrible.

https://www.xlr-net.com/forums/showthread.php?t=3568

I do feel a bit concerned about getting a flat - but I now carry a plug kit and pump around so I should be ok with any minor tire problems...

Overall, I think its worth getting rid of the runflats - had I not experienced the difference myself I would also probably be skeptical.
 

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