I KNOW IM GETTING 17ss but im really confused about the width.i want that the wheel looks agressive and wider but most of you use 205/40 17 so do i have to use the same or if i put 215 it want make big difference,just in look or better in conrners.

ivan

I KNOW IM GETTING 17ss but im really confused about the width.i want that the wheel looks agressive and wider but most of you use 205/40 17 so do i have to use the same or if i put 215 it want make big difference' date='just in look or better in conrners.

ivan[/quote']

215 will have more grip in the dry but less in the wet.

215 will have more grip in the dry but less in the wet.

Unless there Falken 512's then they'll just have no grip....Dry or wet..

215s will protect the rim more as 205s are a little stretched so the outer rim is exposed

Depends on how wide your 17" wheels are: 7" or 7.5" ( like mine ).

I'm thinking of going for 225 /35 / 17 tyres next.

John.

I got my car and it has 235/35/17".. they look really great, the handeling is great as for the size of the wheels, but they're falken.. understeer is very bad lol.. on U turns or some hard corners if u push very hard no grip at all... u can see how they look like in my gallery

The best match in size to 205-45-16 is a 225-35-17. The 205-40-17 and a smidge bigger than the 205-45-16 and the 215-40-17 are a smidge bigger still and IMO bordering on too big froma speedo / rolling radius perspective, although the 215-4 does fit the alloy better (so I've been told).

Heres a table of appropriate tyre sizes, all within 2.5% of OEM (recomended)

205/45 R16 591 mm 1857 mm 0 %

205/40 R17 596 mm 1872 mm + 0.83 %

215/40 R17 604 mm 1898 mm + 2.18 %

215/35 R17 582 mm 1828 mm -1.46 %

225/35 R17 589 mm 1850 mm -0.27 %

As you can see (bold) the 225-35-17 is only 0.27% under which is better than being over as you'll be travelling a smidge slower than speedo reading, as oppsed to faster is the %age is a postive increase.

The 215-40-17 id getting close to the 2.5% max limit, and I prefer to reamin within 1.5% of OEM tyre size, but thats just a personal thing.

However that is all based on a new tyre.

as there is a possible difference of around 12mm in diameter in between a worn and brand new tyre is it really that important?

I say get 215 for rim protection more than anything else.

However that is all based on a new tyre.

as there is a possible difference of around 12mm in diameter in between a worn and brand new tyre is it really that important?

I know exactly what you mean and its something very few people take into account, ie if you do get tyres which are a tad bigger then 1/2 way thru the life of that tyre, i a 205-40-17 you'll have lost the excess that was making the tyre bigger in the 1st place.

so, 1/2 worn 205-40-17 will be approximatley the same size as new 205-45-16, and so on.

I think however, it something people should be made aware of..... tyres always get smaller so you don't have any speedo / camera issue, but if you happen to go too big you could get caught out!

Anybody running 235 / 25 / 17 s?

John.

Anybody running 235 / 25 / 17 s?

John.

Can you get a 25 profile on a 17" ?