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2010 2011 BMW 5 Series Forum F10 18" wheels owners, what tires pressure? |
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05-13-2012, 05:12 PM | #1 |
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18" wheels owners, what tires pressure?
To all the 18" wheels owners out there ,what tires pressure are you guys running? The door jam saids 35 front and 39 rear, is anyone running higher or lower tires pressure? Also, do you think the front tires will wear differently from the back since there is 4 PSI difference.
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05-14-2012, 05:19 AM | #2 | |
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05-14-2012, 05:53 AM | #3 | |
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Rears typically wear much faster on a RWD BMW anyway, regardless of pressure. Always been the way and if we don't, or can't rotate, we replace rears much more often. HighlandPete |
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05-14-2012, 06:42 AM | #4 |
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31 front, 33 rear, wear perfectly even across the tread, rears naturally more worn than the fronts, but still showing at least half life remaining after 16k miles.
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05-14-2012, 08:19 AM | #5 |
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That is much lower than the recommanded pressure, are you running the lower pressure for a sofer ride and better traction?
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05-14-2012, 01:39 PM | #6 | |
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Front 245/45/18: 2.0-2.5 bar (29-36psi) light-heavy load Rear 275/40/18: 2.2-2.7 bar (32-39psi) --------"--------- My pressures, as stated earlier: F 31psi, R 33psi, can't see anything "much lower than recommended" there. |
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05-14-2012, 11:49 PM | #8 | |
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Any other suggestions besides 2.2bar? Safe to go 2.5? |
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05-15-2012, 03:15 AM | #9 | |
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It took me a while to establish my figures and, based on the fact that, after 16k miles, the wear is perfectly even across the tread, it would appear that I wasn't far off the mark. Like you, I usually drive alone or with one front passenger and almost always lightly loaded. However, if I want to take a long trip with an increased load I adjust the pressures accordingly with a portable 12v compressor. Most importantly, don't forget that accurate tyre pressures can only be maintained by using a reliable good quality gauge. |
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05-15-2012, 03:48 AM | #10 | ||
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05-16-2012, 02:41 AM | #12 | |
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Handling characteristics and tyre wear are affected by how heavy the car is and this is compensated for by the manufacturer's recommended range of adjustment. UK cars have this range clearly indicated on the door frame decal. |
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05-16-2012, 01:14 PM | #13 | |
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As for the full load or light, I rather air it for the full load spec. I never know when I'm taking a full car of people to lunch. It's not like I could go air up, then come back to get them. |
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05-17-2012, 02:54 AM | #14 | |
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I keep mine towards the low side because I usually run lightly loaded and, after experimenting extensively within the range, I find it gives me the best ride and handling. Additionally, as I mentioned earlier, tyre wear is also a significant factor to consider and considering that mine are all perfectly even across the tread, it indicates that I've found what's right for me. |
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05-27-2012, 11:22 PM | #15 |
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I run 34 all around~!
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2006 E91 335i - Procede V5/Forge DV & FMIC/Bastuck quad exhaust/P1 Steering Wheel/Sachs Coilover/M kit/19" RS wheels - retired 2011 F10 535i - Stock |
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03-25-2019, 03:16 PM | #16 |
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Anyone runs this configuration? 245/45 99Y R18 Front / 275/40 96 Y R18 Rear. I struggle with choosing the correct tyre pressure for this setup. Now I'm on 32 PSI Front/ 34 Rear.( Pirelli Cinturato P7 Runflats). Thanks in advance 👍🏻😁.
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