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Tyre pressures - 19's
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12-01-2020, 02:52 PM | #1 |
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Tyre pressures - 19's
What is the recommended pressures for a 235 35 19 and 265 30 19 set up on a E91 Lci?
Just put new wheels on this evening (gone from 18's to 19's) and not quite sure what pressures to run. We've gone for 37psi on the front and 40 (I think on the rear). Once the car has been valeted I'll post a thread up with some pics! |
12-01-2020, 03:47 PM | #2 |
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Drives: '01 Z3M, '12 335is, '22 540i
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Garage List 2012 BMW 335i [5.25]
2012 BMW 335is [5.00] 2008 Infiniti QX56 [0.00] 1967 Chevrolet Corv ... [10.00] 2001 M Roadster [10.00] 2022 BMW 540i [0.75] 2009 528i [9.50] |
35 front, 42 rear.
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12-02-2020, 07:55 AM | #4 |
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They're not run flats and there is no recommendation for the size combination I have hence the request on here.
I've gone for 35 & 42 as suggested by ppointer. |
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12-02-2020, 11:03 AM | #6 |
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Just keep an eye on the wear pattern then. If there is excessive wear in the middle of the tread let a bit of air out but I doubt if you are far away.
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12-02-2020, 12:13 PM | #7 |
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2.5 bar all round works for me
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G31 40ix M Sport
E92 335i. E36 328is coupe E39 540i V8 6SP manual E34 3.6 M5. E34 525i sport. VW Jetta Mk2 GTI 16v. 1679cc 1967 resto-cal beetle |
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12-03-2020, 04:59 AM | #9 |
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Jesus 40+ on the rear!
Mine eat the middle section rapidly with anything over 35. Fronts run at 36-37. They like to chew the inner edge so I try to keep the centre higher to alleviate the wear a bit. Not really sure it works mind you! Non RFT's on the updated not so brittle 19's |
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12-03-2020, 05:34 AM | #10 |
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Drives: Beige G31 40ix m sport
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It states 2.5 bar front & rear on my door frame sticker & was confirmed by Bmw technician over 8 years ago when I first bought the car & changed to no rft.
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G31 40ix M Sport
E92 335i. E36 328is coupe E39 540i V8 6SP manual E34 3.6 M5. E34 525i sport. VW Jetta Mk2 GTI 16v. 1679cc 1967 resto-cal beetle |
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12-03-2020, 03:54 PM | #11 | |
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Quote:
The OP has a 4 door, Chappers a 2 door, and I have a lardy drop top so it's a bit like comparing apples with pears anyway to be honest. Tyre sidewall stiffness will also make a difference so you might find with a different brand of tyre you need to run different pressures. Quite frankly I never wear tyres out anyway with the mileage I do. I either have to replace them due to unrepairable punctures or they get so old that the rubber gets hard and brittle with huge cracks all over the place and they would never pass an MOT! The last full set of 4 I replaced still had 6mm tread remaining. |
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