03-09-2019, 07:41 AM | #24 | ||
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My summer setup is 245/35/21 and 275/30/21 7 series 629 wheels in liquid black. 8.5" 25mm offset & 10" 41mm offset My winter setup is 245/40/20 and 275/35/20 G30 759 Individual wheel. With ECS spacers 10mm front spacer & 15mm spacer on the rear.
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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07-02-2019, 04:37 PM | #25 |
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Here are some pictures for my winter setup.
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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clee1982797.50 |
07-09-2019, 01:08 PM | #27 |
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Yes I have 245/40/20 8" wide wheels 275/35/20 9" wide wheels.
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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08-24-2019, 05:35 PM | #28 |
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Hello Norris,
Thanks for your response (seeing it quite late ). Another question, if this is fine with you - have you had any issues with this size? What are you setting in the iDrive as tire size and overall how is the car behaving? Thanks! Last edited by bobbyggx; 08-24-2019 at 05:58 PM.. |
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08-29-2019, 07:35 PM | #30 |
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Local Discount Tire store told me thay had problems with drive train errors showing up when they did this with an X6. Have you had any error codes or other problems which showed up? I would be interested in increasing my wheel diameter by 5mm in the future, as I have recently popped two Goodyear Asymmetric F1s on potholes. I switched to Michelin PS3 ZPs in stock sizes, and love them, but would still consider increasing by 5mm if I could be assurred it would work.
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08-31-2019, 02:41 PM | #31 |
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Higher profile tires
That is exactly what I put on my 2018 540x. It came with 245/35/20 and 275/30/20 but with the horrible potholes around here both front tires developed bubbles. I went up one aspect ratio to 245/40/20 and 275/35/20 and the ride is better and potholes don't feel like you just drove off the end of the road. Personally, I wouldn't go up any more. These seem to fit well and I think they look better.
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Jonathan G.9.00 |
08-31-2019, 07:47 PM | #32 | |
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it's 3 pieces, I didn't install the two parts that go on the air dam & side of the bumper. I only installed the bottom lip.
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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luke1990132.50 |
08-31-2019, 07:58 PM | #33 | |
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For my summer setup I'm actually running the following setup: Bmw 629 style 21" 7 series wheels Tires are pilot sport 4s 255/35/21 8.5" wheel 295/30/21 10" wheel
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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clee1982797.50 |
10-20-2019, 01:45 PM | #34 | ||
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Looking for long term updates from those of you on this thread who upgraded the side wall by 5mm in the stock 668 rims. Anyone have any recent issues? Just got my 2020 and will need to swap out within a month before the bad weather. I'm probably going w 245/40/20 275/35/20. The ride isn't as bad as I thought on stock but I really don't want to deal with punctures later on. Thanks! |
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Jonathan G.9.00 PAL51626.00 |
10-22-2019, 09:02 PM | #35 | |||
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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Jonathan G.9.00 |
10-27-2019, 10:27 AM | #36 | ||||
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The car does feel a little heavier when turning and slightly less agile but maybe it's just me. I can Def see the benefit of lowere side wall summer tires though. More rubber means less handling. Got it. |
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Jonathan G.9.00 luke1990132.50 |
11-09-2019, 12:17 AM | #37 |
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Absolutely No Problem~
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Jonathan G.9.00 clee1982797.50 |
02-07-2020, 09:41 PM | #39 | |
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https://g30.bimmerpost.com/forums/sh....php?t=1486749
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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02-07-2020, 09:53 PM | #40 | ||
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I now have these goodies I need to offload... 664M wheels 19" staggered with new tires. Macht Schnell - 18mm Competition Wheel Spacer Kit - BMW G Chassis SKU: MSL077 |
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02-07-2020, 10:23 PM | #41 | |||
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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02-12-2020, 01:28 AM | #42 | |
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02-12-2020, 03:42 AM | #43 | ||
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Fronts are 8.5" x21" offset is 25mm Rears are 10"x21" offset is 41mm. The front tires have slightly rubbed a few times when I'm backing out of a steep driveway while I turn a certain way. If I'm going straight no rubbing at all. Only when I'm in reverse with a passenger in the front and half a turn to the left. Towards the end of the summer they weren't rubbing anymore. not sure if it was because the tires wore out or the inner fender liners wore out lol These were on a 2017 540i xdrive, m sport suspension, didn't have the adaptive suspension. I will be trying this setup in a couple of months on my 2018 M550i which has the adaptive suspension. It sits slightly lower. So hopefully it doesn't rub any where else.
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2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.
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luke1990132.50 |
02-12-2020, 04:01 AM | #44 | |
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If you're running 20" wheels with 5% taller profile, setup the air pressure as if you have 19". When I have my 21" wheels I would use the 20" recommended tire pressure because than it's profile of 35/30.
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