Will the 18in 40/225 fit in the wheel well, even when part warn or partly deflated?

I do hate carrying the heavy steel full spare which must weight 15 or 20 kgs I would have thought.

I would order a 18 inch alloy spare if it fitted somehow.

Read a few peices on tyres, if they only last 10 or 15 thousand miles on the front do people rotate them to the back around 6-8 thousand and do people tend to use only main brand, AA traction replacements?

Edited 17 April, 201016 yr by lol

I may be wrong but I found the alloys to be considerably heavier than the steel wheels> That was with tyres fitted on both though which may account for some difference. In rough terms I can heft the steel wheel with one arm but would not dream of trying that with the alloy wheel.

I may be wrong but I found the alloys to be considerably heavier than the steel wheels> That was with tyres fitted on both though which may account for some difference. In rough terms I can heft the steel wheel with one arm but would not dream of trying that with the alloy wheel.

I thought it was the main point of Alloy wheels ie less unsprung weight, a part from looking prettier of course. I would have thought an alloy rim would weight just over half that of a steel rim. Steel weighs about 8 times water, where aluminium is around 2.7 times, but of course the aluminium alloy will have more volume, but it would still be several kilos lighter. Tyre would weigh about the same.

I was trying to avoid taking the wheel off and weighing it to compare with spare, worse place to be carrying all that weight ie over the wrong axle.

The alloy wheels are heavier than the steel, counter intuitive perhaps, but there you go.

Will the 18in 40/225 fit in the wheel well, even when part warn or partly deflated?

I do hate carrying the heavy steel full spare which must weight 15 or 20 kgs I would have thought.

I would order a 18 inch alloy spare if it fitted somehow.

Read a few peices on tyres, if they only last 10 or 15 thousand miles on the front do people rotate them to the back around 6-8 thousand and do people tend to use only main brand, AA traction replacements?

It's not the diameter of the wheel that is the issue when in the wheel well, it's the width (which becomes the height when the wheel is on it's side)

My 2010 Octy Estate has 195/65/15 spare tyre/wheel combination . This size tyre is 634mm diameter. Your 225/40/18 tyre is 637mm diameter so should just fit but would need to be checked to make sure. Of course the 225 section height will be above the boot floor level.

I put mine in there when I got a flat and it fit no problem. The only difference is that the tool kit has to sit under it instead of on it

I put mine in there when I got a flat and it fit no problem. The only difference is that the tool kit has to sit under it instead of on it

Brilliant, just want I wanted to know. Thought it might be the case that the only real issue would be the foam formed holder of the jack etc and if I can get a neat solution to that getting a full 18" Neptune spare would be the best way to go, cheers.

I put mine in there when I got a flat and it fit no problem. The only difference is that the tool kit has to sit under it instead of on it

That sounds interesting, other people sy it doesn't fit... Do you have the variable boot floor? Or does the estate have a deeper well than the hatch?