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275/35/19 rear tyres

Discussing the current generation Z4
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Z4 Beemer
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275/35/19 rear tyres

Post by Z4 Beemer » Sat Sep 15, 2018 2:05 pm

I’m a bit out of touch with recent BMW tyre/wheel sizes, but is 275 not a bit wider than usual for 19” rims...? :?
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Fronts are 255 wide.
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275/35/19 rear tyres

Post by arl10 » Sat Sep 15, 2018 2:11 pm

Hi depends on the wheel width , offset & stance of the car .
My X5 could run 255/50/19 fonts , 285/45/19 rears but 255/50/19 all round in the winter .

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275/35/19 rear tyres

Post by sars » Sat Sep 15, 2018 2:27 pm

Wow they’re are quite wide, the e89 is/was 255 and they’re not RFT’s either :driving:
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275/35/19 rear tyres

Post by mr wilks » Sat Sep 15, 2018 7:36 pm

Serious rubber not exactly matched with the brakes :oops: 275 suggests a 10j rear , whatever its good to see the Bmw boffins finally seeing sense on the profile :wink: previous 19s on Zs being a 30 profile which is simply not enough :cry:
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275/35/19 rear tyres

Post by Angelus666 » Sat Sep 15, 2018 7:43 pm

It's a safe choice, 380bhp would unsettle a 255 (like the M4) so these 275s should keep it planted.

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275/35/19 rear tyres

Post by Angelus666 » Sat Sep 15, 2018 7:44 pm

....and the 35% of a 275 does seem quite a high tyre wall, should ride quite well.

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275/35/19 rear tyres

Post by Z4 Beemer » Sat Sep 15, 2018 8:50 pm

mr wilks wrote: Sat Sep 15, 2018 7:36 pm Serious rubber not exactly matched with the brakes :oops: 275 suggests a 10j rear , whatever its good to see the Bmw boffins finally seeing sense on the profile :wink: previous 19s on Zs being a 30 profile which is simply not enough :cry:
Front brakes look a bit meatier...
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275/35/19 rear tyres

Post by mr wilks » Sat Sep 15, 2018 9:26 pm

Angelus666 wrote: Sat Sep 15, 2018 7:43 pm It's a safe choice, 380bhp would unsettle a 255 (like the M4) so these 275s should keep it planted.
I dunno :? the mapped 35i i recently sold was close to that Bhp running 255 35 19s & never felt unruly or twitchy .
275 seems a touch ott
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275/35/19 rear tyres

Post by MrPT » Sun Sep 16, 2018 8:46 pm

The choice of 255/35/19 fronts is more interesting, IMHO. All things being equal, that feels like more aggressive setup (stagger ratio) than the past two generations, and perhaps one more appropriate for a front-engined sports car than what we currently have?
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275/35/19 rear tyres

Post by mr wilks » Sun Sep 16, 2018 8:57 pm

MrPT wrote: Sun Sep 16, 2018 8:46 pm The choice of 255/35/19 fronts is more interesting, IMHO. All things being equal, that feels like more aggressive setup (stagger ratio) than the past two generations, and perhaps one more appropriate for a front-engined sports car than what we currently have?
MrPT wrote: Sun Sep 16, 2018 8:46 pm The choice of 255/35/19 fronts is more interesting, IMHO. All things being equal, that feels like more aggressive setup (stagger ratio) than the past two generations, and perhaps one more appropriate for a front-engined sports car than what we currently have?
Indeed unusual for Bmw cars though my lads 2011 TTrs runs 255 35 19 fronts from stock
3 ZMRs
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo

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