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I'm thinking of getting some new tires for my DS and was wondering what is the largest that would still fit on my 18" rims (currently 235/60R18). Whilst the opening is huge, I noticed there's not that much space between the tire and the front shock on the inside, but can probably add another 1" in height and width. Has anybody tried 255/55R18, 245/60/R18 or even 255/60R18?

Will also be great to get some feedback on all terrain tires in those sizes - maybe the BFG KO2's?
 

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I ended up going for a 245/60R18 and it fits perfect, slightly bigger than the 235's. Chickened out from doing the BFG KO2's and rather went with the Michelin Defender LTX. Had those on my LR3 and Evoque and they do pretty well off-road as well as in rain and snow and last forever (say somebody that spend 99% driving in town back and forth to the office every day - and wish he was doing more off-road!).

I seriously doubt you can go bigger than this without a lift kit, there's literally only 1/2' space between the front tire and the coils spring.
 

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Really interested in these answers - am wondering whether to get a set of 18s or 17s for off road use: has anyone any preferences?


My DS is currently on 20s...
 

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LR of Seattle had a Disco Sport on 265/60/R18 Wranglers a while ago. It looks like it just manages to fit without rubbing but I didn’t have the chance to check it out before it was purchased. Seeing as it was a new car sold by a large dealer, the tires should’ve fit without any issues in order for them to sell it to their customers. View attachment 6928 View attachment 6930 View attachment 6932
 

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Great timing for this post cartrucks! I have been doing a little research on this for a few weeks now.
DS looks fantastic with 265/60/R18 tires.
*I wonder if they had to use spacers? (Probably not...)
*With this tire size is there enough room for cable chains if needed. (I always carry them in the winter however have only needed then twice in 10 years on my LR3).
*Would snow / mud get stuck into wheel well openings with the space much tighter.

The stock tire on the 20" wheel with 245/45/20 the total height is 28.5"
For the 20" wheel you can put on 275/45/20 the total height is 30"
Or for the 20" wheel you can put on 265/50/20 the total height is 30.5"
I see that most DS owners with 18" wheels are going with 255/55/R18 - the total tire height is 29"
The photos show the 265/60/R18 This will have a total tire height of 30.5" So I think this may be the max height for the DS and still have everything work.

It would be great to hear from someone that has fitted a 30.5" tire and know if there are any issues or concerns on the DS. I just purchased a set of 18" wheels on Craigslist and will put either the 255s or 265s on next week. I feel like the 255 is a safe bet, however these photos have me thinking more about the 265s.
Here is another photo -
 

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All, I just put a set of 255/65/R17 on our 2017 DS. Working with the installer (Discount Tire) the max recommended outer diameter they could guarantee no rubbing was 30.12in. I don't know if this is recommended by Discount or by LR. I had in mind going with the 245/70R17 which give 30.5in outer diameter. I chose the Falkens instead of the BFGs because of the cost (50USD a corner + full size spare) and I read that the K02s are noisier than the Falkens.

By the way, my list of size calculations and available tires is below as is a picture of the installed tires.

I have not experienced any rubbing or contact in the last two weeks I've had them. The have a bit more road noise and a slight decrease in economy.

Keeping in mind you can probably get away with the 30.5in out diameter without a lift or spacers but you'll also decrease the usable travel and space in the wheel well for chains. (Though I'm not sure where you're going where you would need AT tires + chains.)
@Rob Bell to answer your question 17 or 18 there are a lot of good reasons to go with the smaller rim diameter to increase the amount of sidewall especially in situations where you might air down the tires, such as on sand. Larger sidewalls also give greater protection against pinching on hard obstacles. I live in SoCal so sand and rocks were my main concern.

With regards to width you actually gain more contact patch in a air down tire with greater diameter than by going a few cm wider. A wider tire also increases rolling resistance and will decrease economy all other things being equal. However, there is also the look, if you like that. IMO I like the tall narrow cookie cutter look.

You would also have to factor in the expense of getting a 17in rim. I went with the new Boxer from Black Rhino. Personally I think it looks the business.

Next time I need tires I will likely get a 2in lift and put taller tires on. Will you please let me know if you have any questions?

Best,
PH
 

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The Disco Sport looks really nice with that combo of rims and tires (and that roof rack as well) @ph001c

I was considering purchasing a set of 265/60/R18 Cooper AT3 4S but I've been putting it off. Seeing as it is less than 0.4in taller than the tires you have on, could you send post a couple pictures of the front wheels at full lock? I am most concerned about rubbing while turning as the space in the front wheel well decreases considerably when the wheels aren't straight. I've bought 10mm and 30mm wheel spacers to test fit, but I've heard that tire centers refuse fitting wheels on cars with aftermarket spacers so I would like to make sure the tires can fit without any modifications. Thanks!
 

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@BrianC thanks!
@cartrucks I really liked the Cooper AT3 and have read good reviews. I will get a couple of pictures this weekend at full lock and post them as you requested. My gut sense is that they will probably fit without rubbing at full lock without spacers as long as the suspension is not loaded/compressed. Cool avatar pic, by the way.
 

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@psyvad Yes, definitely more wind noise and significantly reduced fuel economy. The DS was super-quiet to being with though. But that's the trade-off for the utility and look. It's a Front Runner, by the way. Fit perfectly.

My wife doesn't notice cause she's always got the radio cranked up!
 

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@cartrucks

Following are the pictures you requested. This is the fronts (of course) at full lock. I tried to get a tape measure in there to give you an idea of the gap. Because of the awkward angle it looks on the tape to be MORE space than is actually there. For example at the front of the well at full lock it appears to be 1 1/4in (31mm) it's actually more like 1in (25mm).

The story is the same at the rear of the well which appears to be about 1in (25mm) but is more like 3/4in (19mm). By the way, that exposed screw (just below the tape) is more flush with the wheel well than it appears in the picture although it does have some prominence.

No problem to the top of the wheel at the front or rear tires.

Given that my tires calculated diameter is 30.1in you could probably get away with it without rubbing if the car was not loaded and the suspension was not compressed. It would be tight. I personally wouldn't do it unless I was also going to raise the suspension.
 

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All,

Had the DS out for some light off-roading around Lake Arrowhead CA area last weekend. Conditions were mixed, some sand, some water some mud. Disco and tires did well for the most part. I used the mud/ruts program or sand program for most terrain. Also I found using sport mode with paddle shift was very helpful. Hill descent kicked on in a few cases and a really cool digital inclinometer showed up on the digital dash.

Following are some pictures. I also posted some video on youtube. Link below.

On my first attempt at the larger uphill climb you can see the front right spin in air which tells me it wasn't transferring torque to the tires with traction. I know we don't have locking differentials but with the program engaged I would have thought I still would have been able to climb it in that circumstance.

By the way, my buddies Armada (on 20in street tires) was not able to make it up either the smaller or the larger incline.

Does anyone have detailed info on the AWD system? Who is the supplier? (Is it Haldex?) How does it work exactly?
 

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@ph001c Thanks for the pictures; they're very helpful.

To my knowledge, the DS uses Haldex Gen 5. Some say that it's worse than the Gen 4 system (Found in pre-facelift Evoques and LR2s) due to a lack of an accumulator for the clutch pack. It's supposedly less responsive and less capable, only better due to its lightness and compactness for better integration for manufacturers. It seems as like that might be true; I'm assuming you had traction control off? TC might help somewhat with the braking of individual wheels.

I haven't encountered many cross-axle situations in my DS yet so I can't give an opinion on it. However, when compared to the AWD systems of the likes of the Honda Passport, LR's TR seems woefully inferior:
[ame]https://youtu.be/D5joCUGu18Q?t=540[/ame]
 

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What kind of roof rack is in your picture. I would love to buy a roof rack but want one similar to yours.

All, I just put a set of 255/65/R17 on our 2017 DS. Working with the installer (Discount Tire) the max recommended outer diameter they could guarantee no rubbing was 30.12in. I don't know if this is recommended by Discount or by LR. I had in mind going with the 245/70R17 which give 30.5in outer diameter. I chose the Falkens instead of the BFGs because of the cost (50USD a corner + full size spare) and I read that the K02s are noisier than the Falkens.

By the way, my list of size calculations and available tires is below as is a picture of the installed tires.

I have not experienced any rubbing or contact in the last two weeks I've had them. The have a bit more road noise and a slight decrease in economy.

Keeping in mind you can probably get away with the 30.5in out diameter without a lift or spacers but you'll also decrease the usable travel and space in the wheel well for chains. (Though I'm not sure where you're going where you would need AT tires + chains.)
@Rob Bell to answer your question 17 or 18 there are a lot of good reasons to go with the smaller rim diameter to increase the amount of sidewall especially in situations where you might air down the tires, such as on sand. Larger sidewalls also give greater protection against pinching on hard obstacles. I live in SoCal so sand and rocks were my main concern.

With regards to width you actually gain more contact patch in a air down tire with greater diameter than by going a few cm wider. A wider tire also increases rolling resistance and will decrease economy all other things being equal. However, there is also the look, if you like that. IMO I like the tall narrow cookie cutter look.

You would also have to factor in the expense of getting a 17in rim. I went with the new Boxer from Black Rhino. Personally I think it looks the business.

Next time I need tires I will likely get a 2in lift and put taller tires on. Will you please let me know if you have any questions?

Best,
PH
 

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I ended up getting the 265/60-18 tires. Changed out the 20" wheels I had for 18" then purchased the AT tires. I have to say its a much better ride than the 20" was giving, however the gas milage did go down about 5% or so. Huge difference in the traction in snow, and off road, and many kudos on the new utilitarian look of the Discovery.

No doubt this is the max size tire. I get a very slight tire rub full lock to the right on a U turn however not the left for some reason. Tire is close to the strut however does not touch it even off road because the strut moves at the same time. Anyway here are some before and after photos.
 

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