A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Wheels and Tyres

D2 - Wheels and Tyres Refurbing, center caps, tyre brands, tyrefitters - discuss it here

Reply
 
Thread Tools Display Modes
  #1  
Old 6th December 2019, 08:29 PM
Ronin's Avatar
Ronin Ronin is offline
Member
 
Join Date: Jul 2019
Location: Wales
Posts: 60
Default 195/55R16 instead of 245/45-18 on A8

Hi as the title says i want to use 195/55R16 instead of 245/45-18 on A8.
Specifically instead having the 18" Sport Alloys i want the 16" Sportline alloys from a6/a4 just so i can increase the ride comfort and not change the look of the car.

Any thoughts? Surely this has been done before?

18"


16"
__________________
2002 Audi A8 2.8 Sport Quattro
Reply With Quote
  #2  
Old 6th December 2019, 09:29 PM
tintin tintin is offline
Senior Member
 
Join Date: Feb 2009
Location: Manchester
Posts: 2,734
Default

Not sure what it'll do to the ride comfort, but I'd imagine it'll definitely change the look of the car - 16" rims will just look waaay too small (but I admit I'm a 20" rims fan, so I may be biased... )
__________________

Autos Autos everywhere...
(1) Tesla Model S: (was 85D, now 90D ). Silent and deadly, and very, very fast... But not as fast as Ian's
(2) 2003 D2 S8 Final Edition: Bulletproof and faultless: Ebony Black with Extended (Red!) Leather. Three-times annual winner of Best D2 1st prize forum trophy
(3) Fiat Coupe 20v Turbo: Scots Green. Fragile, but beautiful.
Reply With Quote
  #3  
Old 6th December 2019, 10:04 PM
Ronin's Avatar
Ronin Ronin is offline
Member
 
Join Date: Jul 2019
Location: Wales
Posts: 60
Default

Quote:
Originally Posted by tintin View Post
Not sure what it'll do to the ride comfort, but I'd imagine it'll definitely change the look of the car - 16" rims will just look waaay too small (but I admit I'm a 20" rims fan, so I may be biased... )
Visuals don't really matter to me so much I just don't want to feel like sitting on a bag of nails 18" are a bit much for me I used to have 15" wheels on an octavia before the a8.
__________________
2002 Audi A8 2.8 Sport Quattro
Reply With Quote
  #4  
Old 7th December 2019, 11:20 AM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,327
Default

I put 205/55R16 on my before sending it to scrapyard, they were very small, car very low on out of 2 designs only one just about fitted over front brakes, other would not. If you go 16" make sure they will fit over brakes and tyres will need to be something like 225/60R16 and in that size they will be either 4x4 or van tyres. Or you could go to 17" 225/55R17
__________________
2006 A8 Sport 4.2TDI, 2004 S4 Cabriolet, 2000 A6 2.5TDI quattro Sport Avant

No longer have 1997 S8, reached end of life with gearbox failure
Reply With Quote
  #5  
Old 7th December 2019, 12:43 PM
tintin tintin is offline
Senior Member
 
Join Date: Feb 2009
Location: Manchester
Posts: 2,734
Default

Quote:
Originally Posted by Ronin View Post
Visuals don't really matter to me so much I just don't want to feel like sitting on a bag of nails 18" are a bit much for me I used to have 15" wheels on an octavia before the a8.
Apologies then, I thought you didn't want to change the look of the car.
__________________

Autos Autos everywhere...
(1) Tesla Model S: (was 85D, now 90D ). Silent and deadly, and very, very fast... But not as fast as Ian's
(2) 2003 D2 S8 Final Edition: Bulletproof and faultless: Ebony Black with Extended (Red!) Leather. Three-times annual winner of Best D2 1st prize forum trophy
(3) Fiat Coupe 20v Turbo: Scots Green. Fragile, but beautiful.
Reply With Quote
  #6  
Old 7th December 2019, 04:54 PM
Adrian E's Avatar
Adrian E Adrian E is offline
Senior Member
 
Join Date: Dec 2010
Location: Gatwick area
Posts: 3,706
Default

Check the load index of the tyres you have on the 18s now. If they were over-specced that 'may' result in a harsher ride. Don't go below the spec for the car in terms of load index, however. Some tyre designs are more compliant, if the tyre manufacturer wants to make them that way. From memory Dunlop tend to be quite forgiving.

I wouldn't go down to 16s. It'll look daft on such a big car, and as mentioned if they're designed for vans due to the size it is VERY likely they will have a high load index and actually be harsher on ride than the 18s!
__________________
===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD===

2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus

2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
Reply With Quote
  #7  
Old 7th December 2019, 10:45 PM
Ronin's Avatar
Ronin Ronin is offline
Member
 
Join Date: Jul 2019
Location: Wales
Posts: 60
Default

Quote:
Originally Posted by Adrian E View Post
Check the load index of the tyres you have on the 18s now. If they were over-specced that 'may' result in a harsher ride. Don't go below the spec for the car in terms of load index, however. Some tyre designs are more compliant, if the tyre manufacturer wants to make them that way. From memory Dunlop tend to be quite forgiving.

I wouldn't go down to 16s. It'll look daft on such a big car, and as mentioned if they're designed for vans due to the size it is VERY likely they will have a high load index and actually be harsher on ride than the 18s!
That is something I haven't considered. I think ill run these tyres to the end of their life and just try and buy something same size but softer instead of trying to fix something that isn't really broke.. thanks!
__________________
2002 Audi A8 2.8 Sport Quattro
Reply With Quote
  #8  
Old 8th December 2019, 12:13 AM
notorious's Avatar
notorious notorious is offline
Senior Member
 
Join Date: May 2010
Posts: 2,126
Default

Buy 245/50 R18 tyres.
They are more comfy than 245/45 R18.
I had used them on D2 for many years.
__________________
I'd rather drive on left
Reply With Quote
  #9  
Old 8th December 2019, 01:37 PM
Ronin's Avatar
Ronin Ronin is offline
Member
 
Join Date: Jul 2019
Location: Wales
Posts: 60
Default

Wouldn't doing this put off the speedo readings and gearbox ratio's etc?
__________________
2002 Audi A8 2.8 Sport Quattro
Reply With Quote
  #10  
Old 8th December 2019, 02:41 PM
notorious's Avatar
notorious notorious is offline
Senior Member
 
Join Date: May 2010
Posts: 2,126
Default

Your speed will match GPS speed exactly.
On standard tyres speed shown is about 3% higher than actual GPS speed.
Gearbox is not affected
__________________
I'd rather drive on left
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 03:37 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.