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 28th May 2011, 03:40 PM
surveysteve surveysteve is offline
Member
 
Join Date: Mar 2011
Posts: 53
Default 225/40/18's

Are these ok to fit on the D2 with 18x8 RS4 reps?

Just thinking of a winter set.
Reply With Quote
  #2  
Old 28th May 2011, 04:05 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,802
Default

You could put them on as long as all are the same size but not recommended, normal size for 18" is 245/45R18. 225/40/R18 would be 6% smaller this would result in higher speedo reading, better acceleration, worse fuel economy and lower car plus I do not think they would look any good. For winter wheels narrower are better but You should look for higher not lower profile tyres. 225/50R18 would be good choice, maybe even 225/55R18 for increased ground clearance in winter but that would give lower speedo reading.
Reply With Quote
  #3  
Old 28th May 2011, 04:09 PM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,648
Default

hi steve, the correct size for an 18 inch wheel is 245 x 45 x 18
if you fit 225 x 40 x 18's then you would need to fit the same all around or the quattro wont cope with the difference. also your speedo will read 6% faster than youre actually doing which is quite a bit (it will say 60mph at 56.4mph)
Attached Thumbnails
Click image for larger version

Name:	Tyre sizes.JPG
Views:	310
Size:	32.0 KB
ID:	1926  
__________________

Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
Reply With Quote
  #4  
Old 28th May 2011, 04:15 PM
surveysteve surveysteve is offline
Member
 
Join Date: Mar 2011
Posts: 53
Default

Cheers guys, I would be fitting new tyres to them anyway to run in winter.
So was just looking to see if I could run with the 225's.

I see Camskill do a 60.
http://www.camskill.co.uk/products.p...d=m11b0s4703p0
Reply With Quote
  #5  
Old 28th May 2011, 04:19 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,802
Default

60 might be bit too much and speedo would read 7.3% slower
Reply With Quote
  #6  
Old 28th May 2011, 04:21 PM
surveysteve surveysteve is offline
Member
 
Join Date: Mar 2011
Posts: 53
Default

Yeah, I just checked that too. Does seem a tad on the large side. The arches may be in for some rubbing too with that.
Reply With Quote
  #7  
Old 28th May 2011, 04:28 PM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,648
Default

225 x 50 x 18 will give you closest match to the 245 x 45 x 18
its only 0.7% too slow and very close rolling radius wise
__________________

Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
Reply With Quote
  #8  
Old 28th May 2011, 06:59 PM
surveysteve surveysteve is offline
Member
 
Join Date: Mar 2011
Posts: 53
Default

Looks like I'm going to pass on the wheels I was looking at, they were going pretty cheap on a local VW forum.
I had a look for winter tyres to go with a matching rolling circumference and was not impressed with the lack of choice, with that goes a higher price.

Still, plenty of time before the snow arrives....................................



Reply With Quote
  #9  
Old 28th May 2011, 07:13 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,802
Default

You could get 17" with 225/55/R17 for winter should be cheaper and easier to get but not sure if they will fit over S8 brakes maybe somebody else can comment on that.
Reply With Quote
  #10  
Old 28th May 2011, 07:13 PM
briang9's Avatar
briang9 briang9 is offline
Senior Member
 
Join Date: Jan 2011
Location: Scotland
Posts: 2,818
Default

Quote:
Originally Posted by surveysteve View Post
.

Still, plenty of time before the snow arrives....................................



reckon its due anytime soon round here
__________________



Audi S8 2002, Black (even the chrome bits)
Audi RS6 Avant 2008, Daytona Grey
Maserati Granturismo 2008, Metallic Nero Carbonio
Audi S8 2015, Daytona Grey
Reply With Quote
Reply


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 08:02 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.