245 section tyres - will they fit?

[Hurdy]

Alright, I need more grip and I am considering some 17" lightweight alloys for track use and wondered whether or not 245-40-17 tyres would fit okay width-wise.

The radius will be 5mm less than the 225-40-18's but it is the width I'm wondering about. Similarly I believe I would have to have at least 8" alloys for correct tyre width fitment too.

The tyres I'm considering are the Toyo R888's see below.

http://www.tyretraders.com/SearchType/Default.aspx?Width=245&Ratio=40&Rim=17&Manufacturer=TOYO&ItemCategoryID=MOTOR%20SPORT%20TYRES

And this is the calculator I used

http://www.tyretraders.com/Tyrecalculator/

Any input welcome

[tony_danza]

Funny you mention road legal track tyres, I was speaking to someone today who runs an old factory Leon Cupra Cup car as a track slag and I asked what tyres he used? He said he's found Dunlop DZ02G to be the best, gets a good 6 trackdays (very hard use, soft compound) out of a set if you rotate them and they stick like the proverbial.

Similar in price to R888s and come in either medium or soft compound for about £140-£160 a tyre - something to consider, as a Leon is not far off our size/weight. I think I'll try a set next time.

Sizing, not entirely sure, sorry.

[Hurdy]

I've managed to find a tyre width to rim width calculator too.

http://www.alloywheels.com/tyrecalc.asp

245 section tyres should fit on anything between 8" to 9.5"

All I need to know now is will the tyre width fit under the arches okay?

Anyone?

[jonnyc]

You will have a mission making them fit mate but I think it is possible with the correct offset. Also unless you run a lot of camber for the front arches you will rub a lot if you want the car to be low, if its high you probably shouldnt have too much of a problem..

I had 235/40/18 R888's on the S3 and that was with a ET42 wheel, I think with an ET45+ wheel and rolled arches, 2+ degrees negative camber you should have them fit on without too much trouble..

Im trying to get the 265's on but I need 9" rims for that, up to now I have only found a couple of wheels than I can get in the 5x112 with the correct offset.

Send me an email and ill send you an excel document that I have which should help you out with what your doing!

Jonny

[Hurdy]

I was thinking about also dropping a size to 17" x 8" alloys.

The new OZ Alleggerita HLT ones look promising at just 6.4kg's each

http://www.alloy-wheels-shop.co.uk/p1046745.htm

Thanks for the info. I've sent you the e-mail

265's does look like a proper wide tyre and I'm sure that where there's a will there's a way

[tony_danza]

I was thinking about also dropping a size to 17" x 8" alloys.

The new OZ Alleggerita HLT ones look promising at just 6.4kg's each

http://www.alloy-wheels-shop.co.uk/p1046745.htm

So, I looked and they do them in 18"...... DAMN YOOOOUUUUUUUUUUUU!!!!!!

Fantastic sizing, 17x8 or 18X8 5-112 ET48. Not cheap though. 

[john_o]

nice choice of wheel Hurdy 

[jonnyc]

Looked at them when I was looking at what wheels to get but they were not going to be available until early March apparently.. Couldn't wait that long. They are stunning 

[Hurdy]

Cheers guys.

TD, sorry I wasn't trying to spend your money...honest!!

I think I'll try and get my local tyre guys to pop a 245 section tyre on for me to check fitment.

[ukdub]

OZ Alleggerita HLT  Toyo R888

Where is my credit card?  Been looking for a track wheel.  Thanks Hurdy, you have found them for me

[ukdub]

I was thinking about also dropping a size to 17" x 8" alloys.

The new OZ Alleggerita HLT ones look promising at just 6.4kg's each

http://www.alloy-wheels-shop.co.uk/p1046745.htm

Thanks for the info. I've sent you the e-mail

265's does look like a proper wide tyre and I'm sure that where there's a will there's a way

Just read all the posts again.  Just a thought Hurdy.  Doesn't your brake set up need a little more room than 17"s or am I having a blonde moment.

[tony_danza]

TD, sorry I wasn't trying to spend your money...honest!!

No problem, we've been discussing lightweight wheels for a while over on the dark side actually and it's been noted that some OZ wheels are a little weak, fine for driving, but buckle easily with potholes etc. that's why the Superleggeras were withdrawn.

Even at 1kg per wheel heavier, I think I'd still go down the Speedline route and save myself £450+.

[The wheel man]

How about a leftfield option........

http://www.radius-autotech.com/index.php?option=com_content&task=view&id=68&Itemid=151

On the tyre side, you should be OK.  Although the Toyo 888 is a straight side wall the width of Toyo's is usually less that otherr brands IE a 245 Toyo would probably be the same measuerd width as, say a 235 Goodyear....  HTH 

[Hurdy]

How about a leftfield option........

http://www.radius-autotech.com/index.php?option=com_content&task=view&id=68&Itemid=151

On the tyre side, you should be OK.  Although the Toyo 888 is a straight side wall the width of Toyo's is usually less that otherr brands IE a 245 Toyo would probably be the same measuerd width as, say a 235 Goodyear....  HTH 

Cheers Ben

[Hurdy]

Just read all the posts again.  Just a thought Hurdy.  Doesn't your brake set up need a little more room than 17"s or am I having a blonde moment.

Not quite blonde, but the TAROX's will fit under 17"'s It is just that some won't have clearance to the spokes. The Alleggerita's have a good spoke clearance and should still fit.