Alternative tyre size.

SwallownAmazon · 17-07-17, 10:11 AM

Just a thought:
Has anyone fitted 205/60 x 15 tyres in place of 205/50 x 15 to an Audi 90 20v to reduce revs at a given speed? I know the speedo will be out but surely can be recalibrated. I am not interested in ultimate performance/roadholding, just driving around in a comfortable highish performance car that has given me a lot of pleasure over the years. My tyre dealer friend says that 205/60's were fitted as standard to Audi 90's "back in the day"; is he right or just going on number plate recognition software that may or may not be correct?

Rocket ship should be back on the road this week

after the cam belt change and a few other niggly little things have been put right by the bloke who has looked after it since we acquired it in 1994. Sadly, I don't have the facilities to do major jobs on it now, especially as I can't get up off the floor without rolling over onto my front - old age!

Audiden · 17-07-17, 11:05 AM

205/50/15 is the correct size for your Audi 90 20v.

Upping to 60's will throw the speedo out a little, reduce road holding at higher speeds in theory, but will give you more comfort on our poorly maintained roads.

SwallownAmazon · 17-07-17, 11:33 AM

Thanks Audiden, I was just wondering if anyone had actually made the change. I have 205/50's fitted now which will probably last me quite a long time with the miles I drive these days.

I see there are quite a lot of very enthusiastic classic Audi owners North of the Wall - what is it about the car that seems to appeal to Scots? I went to school and then university in Edinburgh and am going back in November for a big reunion of the Class of '67. Good year that!

John. · 17-07-17, 11:37 AM

Quote:

Originally Posted by SwallownAmazon

..... what is it about the car that seems to appeal to Scots?

Galvanized !

Works for me!

Audiden · 17-07-17, 12:06 PM

Quote:

Originally Posted by John.

Galvanized !

Works for me!

Yes!

I hate rust & tend to favour cars from south of the border & preserve them as best I can!

slacky · 17-07-17, 12:20 PM

I've used 60 profile in the past for a short while , it is comfier but did tend to scrub on the wheel arch occasionally, specially if there were a couple of fat heads ( sorry to be politically correct 3 up) in the back

mikes2 · 17-07-17, 12:38 PM

205/60 were standard fit on the Coupe

17-07-17, 11:05 AM	#2
Audiden Senior Member Classic Audi Club Member Join Date: Aug 2008 Location: Scotland Posts: 1,257	205/50/15 is the correct size for your Audi 90 20v. Upping to 60's will throw the speedo out a little, reduce road holding at higher speeds in theory, but will give you more comfort on our poorly maintained roads. __________________ Too many cars!!

17-07-17, 12:20 PM	#6
slacky 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: wirral Posts: 4,452	I've used 60 profile in the past for a short while , it is comfier but did tend to scrub on the wheel arch occasionally, specially if there were a couple of fat heads ( sorry to be politically correct *3 up) in the back __________________ 90q-Cab.2.3E-Ur-S6-b2-80 Sport* Member 111 Last edited by slacky; 18-07-17 at 06:24 AM.

17-07-17, 12:38 PM	#7
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	205/60 were standard fit on the Coupe __________________ 1991 90 quattro 20v sport 1991 90 quattro

17-07-17, 11:33 AM	#3
SwallownAmazon Grown up member Classic Audi Club Member Join Date: Jun 2017 Location: Tonbridge, Kent Posts: 511	Thanks Audiden, I was just wondering if anyone had actually made the change. I have 205/50's fitted now which will probably last me quite a long time with the miles I drive these days. I see there are quite a lot of very enthusiastic classic Audi owners North of the Wall - what is it about the car that seems to appeal to Scots? I went to school and then university in Edinburgh and am going back in November for a big reunion of the Class of '67. Good year that!