View Full Version : 20x10.5 ET 25 wheels for a B9 A5 Coupe
Seroh1
11-19-2023, 11:47 PM
Hello everyone!
I purchased 20x10.5 ET 25 wheels for my A5 doing minimal research. After doing a bit more reading in the forums, I am genuinely concerned I have made the wrong choice. The wheels have not been mounted, but I would like to know if these will have some poke on my A5 and if so, How much poke? Will the poke be minimal?
kuroitenpi2
11-19-2023, 11:56 PM
I have 20x10 et30 on my b9 A5 and they are flush. Looking at online calculators it would be an extra 11mm poke which could cause issues if you are lowered.
Sent from my Pixel Fold using Audizine Forum mobile app (http://r.tapatalk.com/byo?rid=87676)
Seroh1
11-20-2023, 12:24 PM
Do you have any pics of your fitment?
Hello everyone!
I purchased 20x10.5 ET 25 wheels for my A5 doing minimal research. After doing a bit more reading in the forums, I am genuinely concerned I have made the wrong choice. The wheels have not been mounted, but I would like to know if these will have some poke on my A5 and if so, How much poke? Will the poke be minimal?
Too big a wheel for the A5/S5 body. This is a good RS5 fitment. Look for a 9-9.5" wide wheel with an offset around 28-30. You don't need anything wider than this to support the proper tires for the power levels of the A4. You will simply be adding unnecessary unsprung weight.
kuroitenpi2
11-20-2023, 05:38 PM
Do you have any pics of your fitment?Here's a few pics of the fitment, honestly the rear could be 2 mm more for a complete flush fit, but definitely not any more on the front. 319335319332319333319334
Sent from my Pixel Fold using Audizine Forum mobile app (http://r.tapatalk.com/byo?rid=87676)
workerONE
11-23-2023, 12:24 AM
I agree with kuroitenpi2 - I don't think these will fit at all.
Do you know your OEM wheel offset? I can't find for sure and don't know what size tires you have but this site says it's about 29 https://www.wheel-size.com/size/audi/a5/f5-2020-now/usdm/
You're probably going from like an 8.5" wheel to a 10.5" wheel which is a 50.8mm difference so the wheel will be 25.4mm wider on the outside (and the inside)
But let's focus on the outside part... the new wheel is ET25 which means the outside of the wheel will be out 4mm further than OEM's ET29
25.4mm (wider wheel)
+4mm (offset difference)
= 29.4 mm further out than OEM
If I had to guess (don't rely on this) I would say you could go like 22mm out in the back and like 17mm out in the front, but not 29mm out front and back. That would be 7-8mm poke in the back and 12mm "poke" in the front which will just rub and not fit at all.
I probably made a calculation error or something but then again maybe not.
Seroh1
01-19-2024, 06:04 PM
That looks awesome kuroitenpi2!