I have a 2004 X Type with AWD and would like to know how big can i go without making any modifications and causing any problems as far as wheels. Please give me specs so I can purchase the correct wheels. Thanks!

 

Running 18" wheels with 225/40/18 tires on my lowered 02 x type sport!

 

Without any fender modifications whatsoever and wanting to run the same width wheel on all four corners, I would say the largest you can go without rubbing is a 20x8.5 40-50mm offset and 235/30/20 tires.

After 11 sets of wheels on my X-Type in 2 years, I speak from experience...

My build thread with 9 of the wheels shown for your reference:
Getting off my *** and finally writing a build thread for the Jaguar - StanceWorks

 

Great info, thanks!

 

exexpat, will I get rub with the 20's if i have anyone in the backseat? I would like a set of 20" wheels but from time to time, i will have rear seat passengers.

 

exexpat, will I get rub with the 20's if i have anyone in the backseat? I would like a set of 20" wheels but from time to time, i will have rear seat passengers.

 

i run on 245/45R17 OEM aguila sports rim with no problems at all. No bumper or vender modifications

 

Nope. As long as you stick with 8.5" or narrower wheels and high offsets greater than 40mm, tires 235 or less (the guy above has massive 245s, but I wouldn't take that chance in front with a lowered car, rear would be fine with proper offset) with 30 series (not 35), you won't rub. These are very close to factory overall diameter specs (stock is 25.1 inches, these would be 25.5 inches overall diameter).

 

Just adding to what expat has said and backing up the dimensions, I rub with my 225/40/18's with slightly lowered suspension. If I have anyone in my back seat and turn or accelerate too fast, I will rub fairly bad.

 

What is your offset? I bet it is 35mm or something.

 

yuup, their backspaced 35mm. forgot to add that. Don't go too much backspacing cause then rub will occur.

 

Offset is different (German concept) from backspacing (American concept). Higher offset means the wheels will sit further in the fender wells, so your wheels with a 40mm offset would give you 5mm more clearance from your fender lips and where you are rubbing. Offset is the distance from the center point of the wheel's width. In your case it means the mounting surface is 35mm outside from the center.

 

I'm running 245/40-17's on a 17x8.5" wheel with (I think) a 35mm offset. Looking into doing the sport suspension this year, we'll see if I rub then. Nothing yet with the stock comfort suspension with 128k miles on it.