215/50/50 quattro tyres. - Page 2

quattrodave · 08-03-15, 11:09 AM

I assume that when Audi changed from 205/60 x 15 on the early analog dash UR they recalibrated the speedo for the smaller diameter tyres ? When I get my UR back on the road I will be fiting some V8 1 piece BBS wheels that are 16 inch so was thinking of 225/50 x 16 tyres.

My problem with an early car is that in using 215/50 x 15 tyres these are almost 5% smaller diameter where as 225/50 on a 16 is just 0.7 % larger. Using 225/50 on a 15 is only 3.3% smaller so a bit closer to the original 205/60 diameter. I think it depends on make of tyre as to if it tramlines, back in the 90's I ran 225/50 Fulda's and at the time these were OK.

One interesting comment on modern(ish) cars I recently convinced my brother to put winter tyres/wheels on his X type AWD which was fitted with 225/40 x18 on 8J (sport premium spec) we used 16 inch 7J rims from a lower spec X type with 205/55 tyres, all I can say is that what a difference, the car feels much better still handles as well as an X type can and absolutely no tramlining so I guess we are all becoming victims of fashion with the increasing use of super low profiles.

Isimmo · 08-03-15, 11:27 AM

We've got 205/55/15 Toyo T1Rs on ours... 225/50/15's caught on the rear arches when fully loaded and the suspension compressed, and when we needed 215's they weren't available.

lefthooker · 08-03-15, 11:37 AM

Toyo do a 215/50 15:

http://www.demon-tweeks.co.uk/Produc...FUfkwgodOaAAOg

hmg · 08-03-15, 12:10 PM

Aren't they track day tyres?

lefthooker · 08-03-15, 12:16 PM

The write up says:

"The Proxes R888 is a sophisticated track day tyre, but is also fully road legal - making it suitable for high performance road driving, or driving back home after a trackday. The Proxes R888 boasts an outstanding handling compound which delivers optimum results in the dry and wet".

Isimmo · 08-03-15, 12:26 PM

quattros can be deceptively lively little numbers in the wet, especially standing water on motorways... I can't imagine those helping the situation..!!!!

hmg · 08-03-15, 04:45 PM

Agreed

I just don't like the look of those R888 road legal track day Proxes.

This little gizmo is good to compare

http://tire-size-conversion.com/tire-size-calculator/

It even gives you a visualisation of the 2 tyres to compare.

Jack · 12-03-15, 11:45 PM

Are you interested in two tyres? I have two 215/50 Dunlop's with 6-7mm of thread. Very good condition and low miles on them.

missfire · 13-03-15, 12:09 AM

Not cheap new, holy sheet!

http://shop.atseuromaster.co.uk/tyre...Z-0-1-4I5-1789

Cheaper

http://www.clickontyres.co.uk/premiu...sp_sport_9000z

4v6 · 13-03-15, 10:13 AM

I got mine from camskill, £495 including delivery iirc.

08-03-15, 11:27 AM	#12
Isimmo Super Moderator Classic Audi Club Member Join Date: Jul 2007 Location: Sissix-by-the-sea Posts: 15,218	We've got 205/55/15 Toyo T1Rs on ours... 225/50/15's caught on the rear arches when fully loaded and the suspension compressed, and when we needed 215's they weren't available. __________________ 1985 WR quattro, 1985 20vT RallyRep, 1993 MTM ABY S2 Avant. 2010 S3 Sportback.

08-03-15, 11:37 AM	#13
lefthooker Senior Member Classic Audi Club Member Join Date: Feb 2011 Posts: 2,655	Toyo do a 215/50 15: http://www.demon-tweeks.co.uk/Produc...FUfkwgodOaAAOg Last edited by lefthooker; 08-03-15 at 11:46 AM.

08-03-15, 12:26 PM	#16
Isimmo Super Moderator Classic Audi Club Member Join Date: Jul 2007 Location: Sissix-by-the-sea Posts: 15,218	quattros can be deceptively lively little numbers in the wet, especially standing water on motorways... I can't imagine those helping the situation..!!!! __________________ 1985 WR quattro, 1985 20vT RallyRep, 1993 MTM ABY S2 Avant. 2010 S3 Sportback.

13-03-15, 12:09 AM	#19
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,156	Not cheap new, holy sheet! http://shop.atseuromaster.co.uk/tyre...Z-0-1-4I5-1789 Cheaper http://www.clickontyres.co.uk/premiu...sp_sport_9000z Last edited by missfire; 13-03-15 at 12:14 AM.

08-03-15, 11:09 AM	#11
quattrodave Grown up member Classic Audi Club Member Join Date: Dec 2010 Location: Bingley Posts: 637	I assume that when Audi changed from 205/60 x 15 on the early analog dash UR they recalibrated the speedo for the smaller diameter tyres ? When I get my UR back on the road I will be fiting some V8 1 piece BBS wheels that are 16 inch so was thinking of 225/50 x 16 tyres. My problem with an early car is that in using 215/50 x 15 tyres these are almost 5% smaller diameter where as 225/50 on a 16 is just 0.7 % larger. Using 225/50 on a 15 is only 3.3% smaller so a bit closer to the original 205/60 diameter. I think it depends on make of tyre as to if it tramlines, back in the 90's I ran 225/50 Fulda's and at the time these were OK. One interesting comment on modern(ish) cars I recently convinced my brother to put winter tyres/wheels on his X type AWD which was fitted with 225/40 x18 on 8J (sport premium spec) we used 16 inch 7J rims from a lower spec X type with 205/55 tyres, all I can say is that what a difference, the car feels much better still handles as well as an X type can and absolutely no tramlining so I guess we are all becoming victims of fashion with the increasing use of super low profiles.

08-03-15, 12:10 PM	#14
hmg Grown up member Classic Audi Club Member Join Date: Apr 2014 Location: Cheshire Posts: 632	Aren't they track day tyres?

08-03-15, 12:16 PM	#15
lefthooker Senior Member Classic Audi Club Member Join Date: Feb 2011 Posts: 2,655	The write up says: "The Proxes R888 is a sophisticated track day tyre, but is also fully road legal - making it suitable for high performance road driving, or driving back home after a trackday. The Proxes R888 boasts an outstanding handling compound which delivers optimum results in the dry and wet".

08-03-15, 04:45 PM	#17
hmg Grown up member Classic Audi Club Member Join Date: Apr 2014 Location: Cheshire Posts: 632	Agreed I just don't like the look of those R888 road legal track day Proxes. This little gizmo is good to compare http://tire-size-conversion.com/tire-size-calculator/ It even gives you a visualisation of the 2 tyres to compare.

12-03-15, 11:45 PM	#18
Jack Grown up member Classic Audi Club Member Join Date: Jun 2012 Posts: 333	Are you interested in two tyres? I have two 215/50 Dunlop's with 6-7mm of thread. Very good condition and low miles on them.

13-03-15, 10:13 AM	#20
4v6 Ex Member Classic Audi Club Member Join Date: Dec 2007 Posts: 5,565	I got mine from camskill, £495 including delivery iirc.