Discovery Sport Space Saver Wheel

Nigel Cowley · Jan 7, 2019

I have a 2017 Discovery Sport that has the Emergency Inflation kit instead of a spare wheel. I'm planning a long European tour towing a caravan and would like to take a space saver wheel with me just in case. Should the space saver wheel be the same diameter as the wheels on the car or does this not matter?

Interceptorxj · Jan 7, 2019

Yes needs to be the same diameter.

Bobdog · Jan 7, 2019

Nigel Cowley said:
I have a 2017 Discovery Sport that has the Emergency Inflation kit instead of a spare wheel. I'm planning a long European tour towing a caravan and would like to take a space saver wheel with me just in case. Should the space saver wheel be the same diameter as the wheels on the car or does this not matter?

Wheel should definitely be the same diameter. If not, it could play havoc with TC, ABS etc. Would it not be easier to get a full size spare wheel and tyre and keep it in the caravan?

td4van · Jan 7, 2019

Same rolling radius is important - wheel diameter and tyre size can differ from standard as long as it fits the hub and the rolling radius is the same.

Obviously for limited use - handbook might list the factory space saver size

Pawl · Jan 7, 2019

+1 on td4van 's reply.
Many spacer saver wheels are larger diameter than the standard wheel, but with a lower profile tyre to give the same rolling radius / diameter. Main reason is that it's cheaper and lighter.
I assume some specs did have a spacer saver spare as standard or an option?

discool · Jan 7, 2019

My wife’s car only came with an inflation kit, and a space saver option wasn’t unavailable, so to match the 16 “ alloy wheels fitted I purchased, as a spare a new 14 “ steel wheel fitted with a tyre to match the rolling diameter of the existing 16” wheels
From the dealer a 16“ rim and tyre were only available as an alloy at £530, space saver £245 option, the steel spare complete was £99.00 from a tyre shop in a corner of a small industrial estate.

The reason going for the steel wheel was COST as is something that may never be used, but also it won’t be restricted to the low speed recommendations of a space saver, which if there was one would be something like 50mph,

which is no good at all.

MJI · Jan 7, 2019

Proper Discoverys have full size spare wheels as they should

discool · Jan 7, 2019

MJI said:
Proper Discoverys have full size spare wheels as they should

That’s in the good old days when it was standard and standing vertical in the boot or on the back door

Now it appears the spare wheels are an option, with the disco sport full size 18” alloy is £560 and the steel spare with “reduced section” £165.

MJI · Jan 7, 2019

discool said:
That’s in the good old days when it was standard and standing vertical in the boot or on the back door Now it appears the spare wheels are an option, with the disco sport full size 18” alloy is £560 and the steel spare with “reduced section” £165.

That is the latest Freelander. What about the discovery 5?

discool · Jan 7, 2019

MJI said:
That is the latest Freelander. What about the discovery 5?

Sorry I haven’t a clue, that’s two LR vehicles that i’m not interested in.

Bobdog · Jan 7, 2019

td4van said:
Same rolling radius is important - wheel diameter and tyre size can differ from standard as long as it fits the hub and the rolling radius is the same.

Obviously for limited use - handbook might list the factory space saver size

Pawl said:
+1 on td4van 's reply.
Many spacer saver wheels are larger diameter than the standard wheel, but with a lower profile tyre to give the same rolling radius / diameter. Main reason is that it's cheaper and lighter.
I assume some specs did have a spacer saver spare as standard or an option?

Just to be 'Mr pedantic', if the rolling radius is the same then the diameter is the same. It's the 'loaded radius ' which should be the same as the original tyres. As in the distance from hub centre to the ground. A larger diameter tyre with a narrower tread would be needed to achieve the same loaded radius as a wider tyre. For emergency purposes, the space saver spare would have to be at least the same diameter but with higher pressure. Having said that, you're not going to tour the whole of Europe on a space saver spare...

Discovery Sport Space Saver Wheel

Nigel Cowley

New Member

Interceptorxj

Well-Known Member

Bobdog

Well-Known Member

td4van

Well-Known Member

Pawl

Well-Known Member

discool

Well-Known Member

MJI

Well-Known Member

discool

Well-Known Member

MJI

Well-Known Member

discool

Well-Known Member

Bobdog

Well-Known Member

Similar threads