RangeRovers.net Forum banner

21 - 31 of 31 Posts

·
Registered
Joined
·
12 Posts
Hello,
I see this thread is a bit old, but I'm facing similar issues with selecting big tires for my Range Rover Sport 2009 model, so maybe you can help me.

Unlike the person who started this discussion I'm not looking for big rims, but for good off-road tires (which don't come in low profile tires). I have original 20 inch Land Rover rims and I wonder if 305/45/R20 tires will fit under the car?

Right now I have 275/40/R20 tires on them, but they look very small compared to the rim and the rim is noticeably wider than the tire itself. So I'm pretty sure these tires will fit the rims, but not sure if they will be "small" enough for the car.

Thanks for help.
 

·
Premium Member
Joined
·
516 Posts
Do a search on tire sizes and also take a look at the sticky notes. There is a ton of detailed info here. As for the 305/45 tires you will only be moving to a 30.8" diameter so no rubbing there but the 12" width will most likely cause rubbing everywhere. Best of luck and post pics when you get them.


'06 RRS LUX
'06 pilot EXL
'91 4runner
 

·
Premium Member
Joined
·
516 Posts
Interesting, I had not seen that. I wonder if the 23" rims keep the tires from rubbing the UCA. I wonder if the smaller rims bring the tire "bulge" closer to the upper control arm. I have 275/65R18s and I have less than 5/8" clearance between the upper control arm and the tire.


'06 RRS LUX
'06 pilot EXL
'91 4runner
 

·
Registered
Joined
·
12 Posts
I have 275/65R18s and I have less than 5/8" clearance between the upper control arm and the tire.
305 are by 1.18 inch wider than 275. This means 0.59 inch per side. 5/8 inches is 0.625. So there would be 0.035 inch space if you put 305 tires. So very little, but theoretically they should fit. Of course if they are squeezed in pressure they will easily rub. Very hard question indeed.
 

·
Premium Member
Joined
·
516 Posts
My bad... 3/8 clearance. I'm loosing it.
Take a look at this thread Umbertob mentioned in another tire thread. Very informative as I had forgot about rim offset.

http://rangerovers.net/forum/viewtopic.php?t=23714

'06 RRS LUX
'06 pilot EXL
'91 4runner
 

·
Registered
Joined
·
12 Posts
Hmmm...

Of course I can get 275/45/R20 off-road tires, which would fit perfectly, but I now have 275/40/R20 tires, and the rim is noticeably wider than the tire itself. So every time I go over the curb etc. the rim hits it, therefore I really need wider tires to protect my rims.
 

·
Premium Member
Joined
·
516 Posts
I totally understand. I had the same concerns. I loved my 20's but could not keep them off the curbs. My 8x18's are tucked nicely in.
ImageUploadedByAG Free1475789544.726671.jpg


'06 RRS LUX
'06 pilot EXL
'91 4runner
 

·
Registered
Joined
·
12 Posts
I might be a bit late but I just did a day of tire fitting for my 2008 RRSS. Largest overall diameter I could fit on mine is 31.5". They are Cooper Zeon LTZ 285/60R18 using an 18" rim with a +20 offset (and a bit of shaving of the caliper bracket to get the rim to fit). I tried to fit a set of Cooper STT 275/65R18's which run 32.23" but they were just a bit too big. The rear mount was excessively tight with those.

So if you land around that 31.5" overall diameter or below range you should be fine.
MI2VA, I'm very curios how could you fit your RRS with 275/65R18 tires, when another person was unable to do so, with same sized tires...
Is it because you made 1.5" lift on your car?
 
21 - 31 of 31 Posts
Top