What Are the Best Wheels for the BMW M5 (G90)?

Key takeaways: The best wheels for the BMW M5 (G90) are lightweight true-forged wheels in a staggered 20-inch front / 21-inch rear setup that matches the factory 5x112 bolt pattern and roughly ET28 offsets. Because the G90 is the heaviest M5 ever, a plug-in hybrid weighing around 5,370 pounds, cutting unsprung weight with forged wheels is one of the most effective handling upgrades available for the car.

Why does wheel choice matter so much on the G90 M5?

The G90 M5 is both a technical marvel and a heavyweight. Its twin-turbocharged 4.4-liter V8 plug-in hybrid system makes 717 horsepower, but the battery and hybrid hardware push curb weight to roughly 5,370 pounds, several hundred pounds more than the outgoing F90. All that mass has to be stopped, turned, and controlled, and the wheels sit right in the middle of it.

Wheels are unsprung weight: the mass the suspension has to control that isn't supported by the springs. Every pound you remove there does more for ride and handling than a pound removed from the body. On a car as heavy as the G90, dropping unsprung weight with forged wheels sharpens steering response, helps the dampers keep the tires planted, and can improve ride and grip at the same time. We cover the physics in our unsprung weight explainer.

What are the factory wheel and tire specs on the G90 M5?

The G90 M5 ships with a staggered setup from the factory. Here are the original-equipment specifications to match when you shop:

Both axles use a 5x112 bolt pattern with a 66.6 mm center bore, shared with other modern G-chassis BMWs. Getting the bolt pattern and center bore right is non-negotiable. If you're not sure how to read these numbers, our wheel spec sheet guide walks through every field, and our center bore explainer covers hub-centric fit. You can verify factory details against independent references like the BMW M5 overview on Wikipedia or a road test at Car and Driver.

What size wheels fit the BMW M5 (G90)?

The safest path is to mirror the factory staggered 20-inch and 21-inch sizing, which keeps the speedometer, tire availability, and handling balance as BMW intended. Some owners choose a square setup, the same size at all four corners, to allow tire rotation and simplify track-day tire buying. That's a legitimate choice, but you give up the factory stagger's rear-biased grip and the wider rear look. Our staggered vs. square guide lays out the trade-offs.

Whatever size you pick, stay close to the factory ET28 offset unless you've verified a different number works. Too little offset pushes the wheel toward the fender and invites rubbing; too much buries it in the arch.

Should you go forged on the G90 M5?

For a car this heavy and this fast, forged is the answer. Forged wheels are made by compressing a solid billet of aircraft-grade 6061-T6 aluminum under enormous pressure, which aligns the metal's grain structure and produces a wheel that is stronger for its weight than a cast or flow-formed one. That strength-to-weight advantage is exactly what a 5,370-pound performance sedan needs. Variant builds only true-forged wheels, with no cast or flow-formed products, so every setup for the G90 starts from that foundation. If you want the full comparison, read forged vs. flow-formed vs. cast and our honest breakdown of whether forged wheels are worth it.

Which Variant setups work best on the G90 M5?

Because the G90 is heavy and powerful, we'd steer most owners toward a lightweight forged monoblock for the best strength-to-weight, or a forged two-piece if you want a deeper concave face and a custom lip. Browse forged monoblock options in our EVO collection, two-piece designs in the EX2 collection, or everything cut for your car in BMW M5 fitments and vehicle-specific fitments. If you're cross-shopping against the previous generation, our F90 M5 wheel guide and lightest forged wheels roundup are useful references.

How do you avoid rubbing and fitment problems?

Stick to the factory 5x112 pattern, 66.6 mm bore, and roughly ET28 offset, and match tire sizes to the rim widths above. If you lower the car, watch for rub at the fender and inner liner, especially up front. Small corrections can sometimes be handled with a hub-centric spacer, but only with proper hardware and torque; see are wheel spacers safe. When in doubt, confirm the full spec before ordering.

Frequently asked questions

What is the bolt pattern on the BMW M5 G90?

The G90 M5 uses a 5x112 bolt pattern with a roughly 66.6 mm center bore, shared with other modern G-chassis BMWs.

What size wheels come on the G90 M5?

From the factory it runs a staggered setup: 20x10.5 up front with 285/40 ZR20 tires and 21x11 at the rear with 295/35 ZR21 tires, both at approximately ET28.

Are forged wheels worth it on the G90 M5?

Yes. The G90 is the heaviest M5 ever at about 5,370 pounds, so cutting unsprung weight with true-forged wheels sharpens steering response and ride quality without touching the powertrain.

Can you run a square wheel setup on the G90 M5?

You can, and some owners do it for tire rotation and track use, but you trade away the factory staggered grip balance and the wider rear stance most owners want.

Written by Taylor Smith, co-founder of Variant Alloy Wheels, who has spent nearly two decades in the automotive aftermarket.