Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.
Considering 255/35/19 & 235/35/19 on 10J & 9J
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
Thinking out loud really, but grateful for any input as always...
Running 9J fronts and 10J rears and I’m considering reducing the current tire sizes down from 255/35/19 & 275/35/19 to 235/35/19 and 255/35/19.
It seems that 235 is the minimum recommend with for 9J and that 255 is the minimum recommended with for a 10J .
Assuming this combo works, I could either reuse my current front tires on the rear and just buy a pair of new fronts or replace all 4 tires.
Current tires are Contisport contact 5’s and the fronts (which would become the rears) have very decent evenly worn tread.
I’m thinking replace all 4 really as I don’t want miss-matched tires and I’m not sure I’d want to buy conti 5’s new for the front (or 6’s if I can’t find new old stock)
I’m in two minds though, as I doubt I’d get much back for the conti’s on EBay/Gumtree etc.
Running 9J fronts and 10J rears and I’m considering reducing the current tire sizes down from 255/35/19 & 275/35/19 to 235/35/19 and 255/35/19.
It seems that 235 is the minimum recommend with for 9J and that 255 is the minimum recommended with for a 10J .
Assuming this combo works, I could either reuse my current front tires on the rear and just buy a pair of new fronts or replace all 4 tires.
Current tires are Contisport contact 5’s and the fronts (which would become the rears) have very decent evenly worn tread.
I’m thinking replace all 4 really as I don’t want miss-matched tires and I’m not sure I’d want to buy conti 5’s new for the front (or 6’s if I can’t find new old stock)
I’m in two minds though, as I doubt I’d get much back for the conti’s on EBay/Gumtree etc.
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- Nictrix
- Lifer
- Posts: 5452
- Joined: Mon Aug 18, 2014 9:59 pm
- Location: Paisley
Considering 255/35/19 & 235/35/19 on 10J & 9J
We have 265/30/19 on 10" rims and were considering upping the size to 275 when new tyres are needed. However would stick to 30 sidewall.
Not sure how 255/35 would look on a 10" rim.
Not sure how 255/35 would look on a 10" rim.
E89 2014 35i M Sport Black with Black leather
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
Thanks for this, I thought I’d read recommendations for 245/35/18’s on 9J 18’ alloys, so ‘in my mind’ thought that 255/35/19’s would be workable on 10j 19’s - from wider reading ‘the internet’ suggests 255 is minimum sensible width for 10J
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- Argyll Andy
- Lifer
- Posts: 5346
- Joined: Mon Oct 21, 2019 10:16 pm
- Location: Argyll & Bute
Considering 255/35/19 & 235/35/19 on 10J & 9J
I’m running almost those sizes on standard width rims 8F/9R with no issues
- Attachments
-
- DFDEB5C2-F53F-467C-B9C2-A0B9CDBB2F78.jpeg (52.8 KiB) Viewed 668 times
G29 M40i Thundernight with Ivory interior, all option packs (here for a while, hopefully )
G29 M40i Misano Blue all option packs (Gone 26k of fun)
E89 35iS, Valencia Orange, Design Pure Traction pack (Gone)
E89 23i sDrive, Silver (Gone)
- Ed.Straker
- Member
- Posts: 210
- Joined: Thu Dec 17, 2020 12:05 pm
- Location: Hertfordshire
Considering 255/35/19 & 235/35/19 on 10J & 9J
Why are you thinking of downsizing if it currently works?
What are the offsets on those alloys?
What are the offsets on those alloys?
White 35i MSport MHD re-map…still in one piece
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
Mainly because I think it looks a bit like a moon buggy!Ed.Straker wrote: ↑Sat Mar 06, 2021 6:54 pm Why are you thinking of downsizing if it currently works?
What are the offsets on those alloys?
and, I think having circa 250 BHP-ish it’s a bit ‘over-tyred’ - 255F / 275R - bigger isn’t always better, although I can understand why a 35i or 35is owner might want to go that big
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
Thanks for this, the tires would be stretching an extra inch front and rear, although within legal tolerances as far as I can tell.Argyll Andy wrote: ↑Sat Mar 06, 2021 6:06 pm I’m running almost those sizes on standard width rims 8F/9R with no issues
I want to try and avoid 30 profile, but also not look too ‘balloony’ ... I wonder if 265/35/19 at the back would make enough difference visually.
It just feels like it got rear tires that should be on a Lamborghini from 1985
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- Argyll Andy
- Lifer
- Posts: 5346
- Joined: Mon Oct 21, 2019 10:16 pm
- Location: Argyll & Bute
Considering 255/35/19 & 235/35/19 on 10J & 9J
I washed mine today and took a few pictures, just happened to take one from the rear quarter that sort of shows the rear wheel, arch and profile.True-Blue wrote: ↑Sat Mar 06, 2021 7:54 pmThanks for this, the tires would be stretching an extra inch front and rear, although within legal tolerances as far as I can tell.Argyll Andy wrote: ↑Sat Mar 06, 2021 6:06 pm I’m running almost those sizes on standard width rims 8F/9R with no issues
I want to try and avoid 30 profile, but also not look too ‘balloony’ ... I wonder if 265/35/19 at the back would make enough difference visually.
It just feels like it got rear tires that should be on a Lamborghini from 1985
If you want me to take any specific pictures for you tomorrow let me know
- Attachments
-
- 70ACF767-9F99-445E-8C16-A5CA10D09197.jpeg (225.04 KiB) Viewed 618 times
G29 M40i Thundernight with Ivory interior, all option packs (here for a while, hopefully )
G29 M40i Misano Blue all option packs (Gone 26k of fun)
E89 35iS, Valencia Orange, Design Pure Traction pack (Gone)
E89 23i sDrive, Silver (Gone)
- Ed.Straker
- Member
- Posts: 210
- Joined: Thu Dec 17, 2020 12:05 pm
- Location: Hertfordshire
Considering 255/35/19 & 235/35/19 on 10J & 9J
I’m always interested on how the handling is affected by those sizes that are clearly a long way from the OE settings..True-Blue wrote: ↑Sat Mar 06, 2021 7:40 pmMainly because I think it looks a bit like a moon buggy!Ed.Straker wrote: ↑Sat Mar 06, 2021 6:54 pm Why are you thinking of downsizing if it currently works?
What are the offsets on those alloys?
and, I think having circa 250 BHP-ish it’s a bit ‘over-tyred’ - 255F / 275R - bigger isn’t always better, although I can understand why a 35i or 35is owner might want to go that big
Without doing an A B swap you’ll never know..
Of course most oversized tyres/wheels are done for cosmetic reasons...
Again not sure how stretching a tyre over the widest rim works, but it won’t improve rim protection....
White 35i MSport MHD re-map…still in one piece
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
I’ll try and get a picture from the rear today, and you can see what I mean about how it looks
In terms of stretching, found an interesting post on stanceworks, basically 10j is the same width as the widest point on a 255 tire, and with a 35 profile this is considered as zero stretch, hence is perfectly legal.
In terms of stretching, found an interesting post on stanceworks, basically 10j is the same width as the widest point on a 255 tire, and with a 35 profile this is considered as zero stretch, hence is perfectly legal.
Last edited by True-Blue on Sun Mar 07, 2021 3:05 pm, edited 1 time in total.
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
Considering 255/35/19 & 235/35/19 on 10J & 9J
My e89 definitely feels more agile & lighter on its feet with 17” wheels/225 tyres, it doesn’t stop me from fitting the 19”s in the summer months though purely because they look so much better. It feels a little “clumsy” with the bigger wheels fittedEd.Straker wrote: ↑Sat Mar 06, 2021 9:53 pmI’m always interested on how the handling is affected by those sizes that are clearly a long way from the OE settings..True-Blue wrote: ↑Sat Mar 06, 2021 7:40 pmMainly because I think it looks a bit like a moon buggy!Ed.Straker wrote: ↑Sat Mar 06, 2021 6:54 pm Why are you thinking of downsizing if it currently works?
What are the offsets on those alloys?
and, I think having circa 250 BHP-ish it’s a bit ‘over-tyred’ - 255F / 275R - bigger isn’t always better, although I can understand why a 35i or 35is owner might want to go that big
Without doing an A B swap you’ll never know..
Of course most oversized tyres/wheels are done for cosmetic reasons...
Again not sure how stretching a tyre over the widest rim works, but it won’t improve rim protection....
Rob Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
This is what I mean about ‘over-tyred’.....
CARLOS-FANDANGO
CARLOS-FANDANGO
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
-
- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Considering 255/35/19 & 235/35/19 on 10J & 9J
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- Ed.Straker
- Member
- Posts: 210
- Joined: Thu Dec 17, 2020 12:05 pm
- Location: Hertfordshire
Considering 255/35/19 & 235/35/19 on 10J & 9J
What are the offset dims?
White 35i MSport MHD re-map…still in one piece
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
- Ed.Straker
- Member
- Posts: 210
- Joined: Thu Dec 17, 2020 12:05 pm
- Location: Hertfordshire
Considering 255/35/19 & 235/35/19 on 10J & 9J
Rob..Smartbear wrote: ↑Sun Mar 07, 2021 1:36 pmMy e89 definitely feels more agile & lighter on its feet with 17” wheels/225 tyres, it doesn’t stop me from fitting the 19”s in the summer months though purely because they look so much better. It feels a little “clumsy” with the bigger wheels fittedEd.Straker wrote: ↑Sat Mar 06, 2021 9:53 pmI’m always interested on how the handling is affected by those sizes that are clearly a long way from the OE settings..
Without doing an A B swap you’ll never know..
Of course most oversized tyres/wheels are done for cosmetic reasons...
Again not sure how stretching a tyre over the widest rim works, but it won’t improve rim protection....
Rob97193DA0-6639-45D6-84D2-0FD432A22752.jpegEDA617AE-8051-4EED-BDBD-1E57725E73A2.jpeg03BD7235-13E1-444E-8A9B-3E97F61DDCC5.jpegE62ADBA8-2D19-4315-9142-335C71B6C327.jpeg
Rob
I’m always amused with this desire to have the biggest alloys fitted to cars...almost all cars will have much less unsprung weight and less rotational momentum with the same rolling radius configurations with more tyre and less alloy wheel.
Doesn’t surprise me that you get a perceived better ride/handling with 17” wheels....on Audis my favourite first thing is to get rid of the wafer thin tyres and put something with at least a 35% ratio, usually with different alloys.
White 35i MSport MHD re-map…still in one piece
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off
Atacama Yellow 20i MSport Auto. Remapped, more to be done…written off