Aston Martin DB7, DB9, DBS, Vantage V8, Vanquish, and Classic models

DBS V12 Tyre Size Increase

Old Apr 10, 2022 | 01:30 PM
  #16  
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On DBS
245/40 and 295/35/20 Michelin PSS
Much better with no problem.
 
Old Apr 12, 2022 | 08:00 AM
  #17  
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Any problems with fitment on a lowered DBS with increased size?
 
Old Jan 17, 2024 | 11:42 AM
  #18  
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Same tire increase question here.

Im looking at using the progressive springs for better ride/handling but would like to recover some ground clearance with more sidewall, does it fit?
considering either
245/40-20 & 295/35-20 (more side wall) or
255/40-20 & 305/35-20 (more side and width).

anyone tried this on DBS or DB9 or Virage?
 
Old Jan 20, 2024 | 10:12 AM
  #19  
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Originally Posted by Captain Cove
Im looking at using the progressive springs for better ride/handling but would like to recover some ground clearance with more sidewall, does it fit?
considering either
245/40-20 & 295/35-20 (more side wall) or
255/40-20 & 305/35-20 (more side and width).

anyone tried this on DBS or DB9 or Virage?
I did that on my Vantage and it was fine. Never rubbed while turning or scrubbed the inner fender on compression. Going up 10mm on the width won't cause any problems, and the tire will look like it fits better. Only go up on width, not sidewall. Changing from a 295 to a 305 width will give you more sidewall by default because the height number is a ratio of the width, not an absolute measurement. If you increase the width AND the height numbers your outer circumference will be too much and your speedometer will be very inaccurate.

I plan to do the same to my Vanquish, as well. The original tires look too stretched on the rims and the speedometer consistently reads 3mph low at 40mph. Increasing the width, and thus the height ratio, will fix both problems.
 

Last edited by Kalepsis; Jan 20, 2024 at 10:17 AM.
Old Jan 20, 2024 | 01:19 PM
  #20  
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Originally Posted by Kalepsis
I did that on my Vantage and it was fine. Never rubbed while turning or scrubbed the inner fender on compression. Going up 10mm on the width won't cause any problems, and the tire will look like it fits better. Only go up on width, not sidewall. Changing from a 295 to a 305 width will give you more sidewall by default because the height number is a ratio of the width, not an absolute measurement. If you increase the width AND the height numbers your outer circumference will be too much and your speedometer will be very inaccurate.

I plan to do the same to my Vanquish, as well. The original tires look too stretched on the rims and the speedometer consistently reads 3mph low at 40mph. Increasing the width, and thus the height ratio, will fix both problems.
my question is about bigger tires WITH the progressive spring.
 
Old Jan 22, 2024 | 05:04 PM
  #21  
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Originally Posted by Kalepsis
I did that on my Vantage and it was fine. Never rubbed while turning or scrubbed the inner fender on compression. Going up 10mm on the width won't cause any problems, and the tire will look like it fits better. Only go up on width, not sidewall. Changing from a 295 to a 305 width will give you more sidewall by default because the height number is a ratio of the width, not an absolute measurement. If you increase the width AND the height numbers your outer circumference will be too much and your speedometer will be very inaccurate.

I plan to do the same to my Vanquish, as well. The original tires look too stretched on the rims and the speedometer consistently reads 3mph low at 40mph. Increasing the width, and thus the height ratio, will fix both problems.
Got it backwards my friend. Increasing the tire height will make your speedo read even lower than it does now.
 
Old Jan 23, 2024 | 05:20 AM
  #22  
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I don’t think I care too much about what the speedometer reads. The question is can I increase the tires side wall with the VAP progressive springs?
 
Old Jan 26, 2024 | 06:23 PM
  #23  
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Originally Posted by Captain Cove
I don’t think I care too much about what the speedometer reads. The question is can I increase the tires side wall with the VAP progressive springs?
I don't see why not.
 
Old Jan 26, 2024 | 06:25 PM
  #24  
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Originally Posted by XJRS Owner
Got it backwards my friend. Increasing the tire height will make your speedo read even lower than it does now.
Typo, sorry. I meant to say it reads too high. At 40 mph it says 43.
 
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