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BMW M550i G30 (2018-2023) Wheel Fitment Guide
The G30 M550i uses a 5×112 bolt pattern, a 66.6mm center bore and M14×1.25 lug bolts with a 60° conical seat. Factory wheels run ET30 front and ET44 rear on 8″ and 9″ widths. This guide covers 2018–2023 M550i xDrive sedans, with notes on M Sport brake clearance and xDrive tire pairings.
About this guide: Fitment data is compiled from M550i owner builds in public fitment galleries and customer cars in wheel-maker fitment galleries, cross-checked against vendor fitment documentation. Use it as research for your build; ride height, tires, and alignment are still your installer's call.
Pricing forged wheels for your M550i? Full sets from $3,150 in 19″, or $3,400 in 20″.See your exact price →
OEM Setups
Factory Wheel & Tire Configurations
Every G30 M550i shares the hub hardware below. The factory 19″ and 20″ wheels are all 8″ front / 9″ rear at ET30 / ET44, so the style mostly changes the look, not the fitment.
G30 M550i Hub & Hardware Specs
All trims — 2018–2023
Bolt Pattern5×112
Center Bore66.6mm
Fastener TypeLug Bolts
Thread PitchM14×1.25
Seat Type60° Conical
Torque Spec103 lb-ft (140 Nm)
Factory OffsetET30 front / ET44 rear
Brake SystemM Sport brakes (blue calipers) on every car; 19″ minimum for aftermarket wheels
The standard M550i wheel. The 664M double-spoke ran on pre-LCI cars and the 845M Y-spoke took over with the 2021 refresh at the same sizes and offsets, so tires and TPMS sensors swap between them. It is the reference wheel for the lip figures on this page.
20″ Wheels — Styles 668M / 759i / 669M / 846M
Optional
Front Wheel20×8 ET30
Rear Wheel20×9 ET44
Front Tire245/35R20
Rear Tire275/30R20
ConstructionLight alloy (669M forged)
Applies ToM550i xDrive, all years (846M on 2021–2023)
The optional 20″ wheels: the 668M M double-spoke, 759i BMW Individual V-spoke, the forged 669M M Performance double-spoke, and the 846M Y-spoke on LCI cars. All share the 19″ wheels' widths and offsets.
18″ Wheels — Styles 619 / 684 / 662M
BMW-listed 18″ (winter)
Front Wheel18×8 ET30
Rear Wheel18×8 ET30 (619 / 684) or 18×9 ET44 (662M)
Front Tire245/45R18
Rear Tire245/45R18
ConstructionLight alloy
Applies ToM550i xDrive, mostly as winter sets
BMW's parts catalog lists these 18″ wheels for the M550i, mostly as square winter sets sized to clear the factory M Sport brakes. BMW notes the 619 winter set is not for cars retrofitted with M Performance brakes.
Aftermarket Options
Aftermarket Wheel & Tire Configurations
Each card below is one wheel size, and each row is one documented owner build or vendor fitment-guide setup at its effective offset. Spacer builds are listed at the offset we would machine into the wheel. Front and Rear figures show how far each lip sits outside stock.
Tap a setup to jump to its full card. Fit: Bolt-on = documented at stock ride height with no fender work reported · Lowered = documented on lowering springs or coilovers · Not reported = owners didn't say. Sources = owner builds (including customer cars in vendor galleries) and vendor fitment-guide setups documented on that card.
Every M550i has M Sport brakes. BMW's own 18″ wheels are sized to clear them, but the vendor guide tells M550i owners to run only 19″ or 20″ aftermarket wheels, especially with the optional larger brakes. Caliper clearance also depends on spoke shape and is checked for your design.
AWD rolling diameter on xDrive.
Staggered configurations can produce front-to-rear rolling diameter mismatches that may stress xDrive systems over time. The math should be checked against your owner manual before committing — we document tire dimensions on every card; verifying compatibility is your responsibility.
Lug bolts and front spacers.
FMB machines M550i wheels for 60° conical-seat bolts, the same seat BMW uses, so factory-style M14×1.25 bolts work. Some wide-running tires and suspensions need a small front spacer on a 9″ ET25 front; a wheel machined to the effective offset avoids that.
Square Setup
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Wheels (All 4)
19×8.5 ET28 (Front and Rear)
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
ET28
Stock height2018 M550i xDrive · 265/35R19 all round, Nitto NT555 G2 · no rubbing reported
Front8mm outRear10mm out
Sources
Documented
1 community
An 8.5″ square documented on one stock-suspension car on 265/35 tires, with no rubbing reported. The rear wheel is half an inch narrower than stock but sits further out.
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Wheels (All 4)
19×9 ET25 (Front and Rear)
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
ET25
Stock heightVendor fitment guide · 255/40R19 or 245/40R19 all round, including winter tires · vendor guide lists it as xDrive-compatible
Front18mm outRear19mm out
Sources
Documented
1 vendor
A vendor square on 255/40 or 245/40 tires, also the vendor's winter setup. Same tire at all four corners keeps xDrive happy and lets tires rotate.
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Wheels (All 4)
20×9 ET25 (Front and Rear)
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
ET25
Stock heightVendor fitment guide · 245/35R20 or 255/30R20 all round · vendor guide lists it as xDrive-compatible; wide-running tires may need a small front spacer
Front18mm outRear19mm out
Sources
Documented
1 vendor
The 20″ vendor square on 245/35 or 255/30 tires, listed as xDrive-compatible. Wide-running tires may need a small front spacer.
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Wheels (All 4)
19×9.5 ET25 (Front and Rear)
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
ET25
Stock heightCar in a vendor gallery · 265/35R19 all round, Falken Azenis RT660 · also a vendor fitment-guide setup
Front24mm outRear25mm out
Sources
Well-documented
1 community
1 vendor
A 9.5″ square on 255/35 tires, listed by the vendor as xDrive-compatible and documented on one G30 sedan in a vendor gallery on 265/35 tires. Rotatable and flush at both ends.
Staggered Setup
Most Popular
Stance rangeflush → poke
OEM
Aggressive
AWD onlyDaily
Front Wheels
20×9
Documented ET20 – ET25
Rear Wheels
20×10
Documented ET25 – ET40
Documented offsetsLip position vs. stock · F 8J ET30 · R 9J ET44
ET25 / ET40
Via spacersStock height2018 M550i xDrive · 275/35R20 / 305/30R20, Michelin PS4S · no rubbing reported
Front18mm outRear17mm out
ET25 / ET38
Stock heightVendor fitment guide · 245/35R20 / 275/30R20, the factory 20″ sizes · vendor guide lists it as xDrive-compatible; tires that run wide may need a small front spacer
Front18mm outRear19mm out
ET25 / ET35
Stock heightLowered2 owner builds · mostly 245/35R20 / 275/30R20 (Continental DWS06 Plus); others on 255/35R20 / 295/30R20 · documented on H&R lowering springs · one on stock suspension
Stock height2018 M550i xDrive · 245/35R20 / 285/30R20, Nexen N5000 Plus · no rubbing reported
Front18mm outRear27mm out
ET20 / ET25
Stock height2019 M550i xDrive · 275/35R20 / 295/30R20, Michelin Pilot Sport A/S 4 · no rubbing reported
Front23mm outRear32mm out
Sources
Well-documented
6 community
1 vendor
The most documented M550i setup: 20″ wheels an inch wider than stock at both ends. Most owners run ET25 / ET35 on stock suspension with no rubbing reported. The vendor ET25 / ET38 row keeps the factory 20″ tire sizes for xDrive; other rows use larger rear tires, so check the diameter pairing.
Stance rangeflush → poke
OEM
Aggressive
AWD onlyDaily
Front Wheels
19×9
Documented ET25 – ET35
Rear Wheels
19×10
Documented ET20 – ET38
Documented offsetsLip position vs. stock · F 8J ET30 · R 9J ET44
Stock heightVendor fitment guide · 245/40R19 / 275/35R19, the factory 19″ sizes · vendor guide lists it as xDrive-compatible (also with a ET28 front); 255/40 / 285/35 is the wider option
Front18mm outRear19mm out
Sources
Well-documented
1 community
1 vendor
An inch wider than the factory 19″ wheels on the same tire sizes. The vendor ET25 / ET38 setup is the easy step; one stock-suspension owner runs an ET20 rear, about 37mm out, with no rubbing reported.
Stance rangeflush → poke
OEM
Aggressive
AWD onlyShow
Front Wheels
20×9
Documented ET20 – ET30
Rear Wheels
20×10.5
Documented ET35 – ET40
Documented offsetsLip position vs. stock · F 8J ET30 · R 9J ET44
ET30 / ET35
Lowered2018 M550i xDrive · tires not listed · H&R lowering springs · only a 275/30R20 size listed; no rubbing reported
A 10.5″ rear for a fuller look, documented on four cars, three of them at stock height. The ET40 rear sits about 23mm out; one owner on an ET38 rear with 305 tires reports rubbing.
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Front Wheels
20×8.5 ET28
Rear Wheels
20×10 ET40
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
A half-inch wider front with a 10″ rear at ET40, documented on one stock-suspension car with no rubbing. The front stays close to stock and the rear sits about 17mm out.
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Front Wheels
19×9.5 ET25
Rear Wheels
19×10 ET38
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
ET25 / ET38
Stock heightVendor fitment guide · 255/35R19 / 295/30R19 · the vendor guide's xDrive-compatible pairing for this size; a 5mm front spacer may be needed with tires that run wide
Front24mm outRear19mm out
Sources
Documented
1 vendor
A vendor fitment-guide setup: 9.5″ ET25 front and 10″ ET38 rear on 255/35 / 295/30, the pairing the vendor lists as xDrive-compatible for this size. Wide-running front tires may need a 5mm spacer.
Stanceflush → poke
OEM
Aggressive
AWD onlyDaily
Front Wheels
19×8.5 ET27
Rear Wheels
19×9.5 ET20
Documented buildLip position vs. stock · F 8J ET30 · R 9J ET44
ET27 / ET20
Via spacersStock height2018 M550i xDrive · 245/40R19 / 275/40R19, Continental ProContact GX run-flat · no rubbing reported
Front9mm outRear30mm out
Sources
Documented
1 community
Factory-like widths moved out with spacers on one stock-height car. As a forged wheel that face position is ET27 / ET20; it ran a 275/40 rear, which needs a diameter check on xDrive.
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Built to the exact spec, not the closest one on a shelf. The setups above come from real M550i builds, and we CNC-machine every wheel to them directly. If a build needs a spacer to reach its offset, we machine that offset into the wheel instead.
Choose your setup.
This guide is built to give you what you need to pick a spec with confidence: documented M550i builds, tire sizes, and how each one fits. If you still have questions, we're happy to help before you order.
Engineering verification.
Our manufacturing partner confirms wheel specs, including bolt pattern, center bore, brake caliper clearance, backspacing and load rating.
Render approval.
You approve the design and final specs before we move forward with production.
Our fitment guarantee
Every set is guaranteed to mount on your M550i: 5×112 bolt pattern, bored to the 66.6mm hub, machined for 60° conical lug bolts, and made to the exact width and offset you approved.
How a setup sits on your car also depends on ride height, tires and alignment, so choose with your plans in mind.
What are the factory wheel specs on the BMW M550i G30?
Every M550i factory wheel is 8″ wide at ET30 in front and 9″ wide at ET44 in back. The standard 19″ wheels (664M, then 845M from 2021) run 245/40R19 and 275/35R19 tires; the optional 20″ wheels run 245/35R20 and 275/30R20. BMW also lists 18″ wheels, mostly as winter sets.
What are the bolt pattern, center bore and torque specs?
The G30 M550i uses a 5×112 bolt pattern, a 66.6mm center bore and M14×1.25 lug bolts with a 60° conical seat, torqued to 103 lb-ft (140 Nm). FMB machines every set for 60° conical lug bolts, so factory-style bolts of the correct length work.
What aftermarket wheel sizes fit the M550i at stock ride height?
Owners running aftermarket wheels at or near the factory specs typically report no clearance changes at stock ride height. Documented stock-suspension builds include 20×9 ET25 / 20×10 ET35, 20×9 ET25 / 20×10.5 ET35 and ET40, and 19×9 ET35 / 19×10 ET20. Each is marked Stock height on its card.
How do I read the offset rows, and what separates flush from aggressive?
Each card is one wheel size; each row is one documented build at its effective offset. The Front and Rear figures show how far each lip sits outside the stock 8J ET30 / 9J ET44 wheels. Under about 16mm reads flush on most M550is; 25mm and up starts to poke past the fender.
Do I need to worry about brake caliper clearance?
Yes. Every M550i has M Sport brakes, and the vendor fitment guide tells M550i owners, especially those with the optional larger brakes, to run only 19″ or 20″ aftermarket wheels. BMW's own 18″ wheels are sized to clear the factory brakes. FMB checks caliper clearance for your brake package before forging.
Why do tire sizes matter so much on an xDrive M550i?
Every US M550i is all-wheel drive. Staggered setups can produce front-to-rear rolling diameter mismatches that may stress the xDrive system over time. The factory pairings keep diameters close. We document tire sizes on every card; checking the math against your owner's manual is your responsibility.
Square or staggered on the M550i?
Staggered setups, mostly 20×9 / 20×10 or 20×10.5, are what most owners run and keep a factory-like look. Square setups such as 19×9.5 ET25 or 20×9 ET25 use one tire size all round, which makes rolling diameter on xDrive a non-issue and lets you rotate tires.
Do I need spacers on the M550i?
Not with the right offset. The vendor guide notes that wide-running tires on a 20×9 ET25 front, and some aftermarket suspensions, may need a small front spacer. Every spacer build on this page is listed at its effective offset, because FMB machines that face position into the wheel.
What winter wheels can I run on the M550i?
BMW lists 18″ winter sets (619, 684, 662M) sized to clear the M Sport brakes, mostly on 245/45R18. For aftermarket winter wheels the vendor guide lists a 19×9 ET25 square on 245/40R19 or 255/40R19, and keeps M550i owners to 19″ or larger.
Which cars does this guide cover?
This guide covers the G30 M550i xDrive sedan in the US for the 2018–2023 model years, both the pre-LCI cars and the 2021 refresh. The refresh changed the standard wheel style but not its size or offsets, so every card applies to all of them. The F90 M5 uses different offsets and has its own fitment.
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