Tyres 215/40/17 weird size?

[GTI6R]

Car is lowered on h&r's 25/40 but apparently 225/40 are also a pain to find somewhere in stock.. Ozzy tyres/ Tempe tyre and st george tyres are lucky to have a set in stock and they are no brand. I feel like the only option let is to go to the more common 45 series tyre

[The_Hawk]

Just remember that those tyres are ~5% larger than the originals and will push your speedo and odometer out by that same margin.

They may fit and work just fine and given the ~6% error in the speedo anyway it should still be legally acceptable, just be aware of the changes.

Check out the differences here:
http://tire-size-conversion.com/tire-size-comparison/

(or any one of the many many different calculators)

[ATYPIC]

I previously had 18x7.5 with 225/35R18. The overall diameter was 614mm and I had only slight rubbing with this combination with the same lowering springs as yourself.

The Kumho KU36 225/45R17 is 634mm in overall diameter. That is 30mm more in diameter than the stock 215/40R17 tyres and you WILL get major rubbing...but then again, maybe this doesn't bother you.

A standard 215/40R17 tyre is 604mm in overall diameter
A standard 205/45R17 tyre is 614mm in overall diameter (same as the above 18inch spec)

What about these:
215 40 17 2154017 87W Toyo Proxes 4 Brand NEW Tyre | eBay
Kumho Ecsta LE Sport KU39 215 40R17 87Y Free Shipping 12 MTH Warranty | eBay
215 40 17 Federal 595 EVO Passanger Sport Tyre | eBay

[Diesel_vert]

As an alternative to 225/45 R17 (634 mm, +5.0%) tyres, consider mounting 215/45 R17 (626 mm, +3.6%) tyres instead. It's still a relatively large increase, just not as extreme.

Naturally, fitting a 225/45 R17 tyre will increase the ride height by 12 mm, and for a 215/45 R17 tyre, by 8 mm (using 215/40 R17 as a baseline).

As gldgti was alluding to, 215/45 R17 is a somewhat common fitment in Australia, so prices should be similar to that of 225/45 R17 tyres.

[GTI6R]

Thanks diesel I will look into it tomorrow I will call around

[MrDeathLad]

also not that a 205 on a 7.5 wide will have very slight stretch, which will give a very small decrease in overall diameter. as opposed to the stock 215 on a 7.

[pologti18t]

I got Ku39 off Tempe Tyres (online). Can't fault them for the price. Not as sharp as the Pilot Precedas2 I had before, but the ride is much nicer (if that is a concern). For the price they are excellent. They are touted as a more luxury/performance tyre.

Kumho 2154017 87Y KU39

[gabigti]

I got hankook v12 evo 215/40 r17 from jax tyres for $179 a few months ago.

[brad]

I've got 17x7.5 rpf1's on my car so I should be sweet to run the 225. Instead of just doing the 2 tyres I've decided YOLO and just to do all 4 I think ku36's or s001 it is.. Hopefully the 225/45 fill abit of the arch gap aswell I know it's not much but it all counts.

225/45r17 - almost guaranteed to rub on the arch liners & I think you'll find they contravene the NSW guidelines

Have you plugged the before & after into a tyre size calculator?

I'd attach the one I use but the forum software doesn't allow exell spreadsheet attachments

[ATYPIC]

Try this one. I've already entered the details.

Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit