G22/G23/G26 BMW M440i Wheel Fitment Guide
Upgrading to aftermarket wheels and tires is one of the most effective ways to enhance your BMW M440i’s performance and presence. With so much conflicting information scattered across forums and fitment calculators, finding reliable data for your G22, G23, or G26 can be challenging. This fitment guide distills our extensive testing and real-world installations to help you select the perfect wheel setup for your M440i.
We’ve designed this guide to cover everything from conservative OEM-style fitments to aggressive track-inspired setups. As enthusiasts ourselves, we understand that every build is unique and details matter. All Curva Concepts wheels are engineered to clear your M440i’s factory brakes, and we’ve validated fitment with several popular big brake kits for those planning future upgrades.
The M440i is available in three body styles—G22 Coupe, G23 Convertible, and G26 Gran Coupe—each offering RWD and xDrive variants. The good news is that despite different drivetrains, the chassis and wheel wells are identical across all models from 2021-2025. This means our fitment recommendations apply universally to both configurations.
One important note for xDrive owners considering staggered setups: maintaining proper tire diameter variance between axles is critical for your all-wheel-drive system. The tire combinations in this guide keep you within BMW’s acceptable tolerances. If you’re building a custom setup, reach out and we’ll help you choose the right tire sizes.
Understanding G22, G23, and G26 Differences
The BMW M440i is available in three distinct body styles, each identified by its chassis code. The G22 is the traditional two-door coupe, the G23 is the convertible with a retractable soft top, and the G26 is the four-door Gran Coupe. Despite these body style variations, all three models share the identical chassis platform, suspension geometry, track widths, and wheel well dimensions.
This means wheel fitment specifications are completely universal across all G22, G23, and G26 models from 2021-2025, regardless of whether you’re running a rear-wheel drive or xDrive configuration. All three utilize the same 5×112 bolt pattern and 66.6mm center bore, so you can confidently apply the fitment recommendations in this guide to any M440i variant. The only difference you’ll encounter is the slightly higher curb weight on the convertible and Gran Coupe models, but this has no impact on proper wheel fitment.
OEM M440i Wheel & Tire Fitment
Model | Specification | Wheel Size & Offset (Front) | Wheel Size & Offset (Rear) | Bolt Pattern | Bore | Tire Size (Front) | Tire Size (Rear) |
---|---|---|---|---|---|---|---|
G22/G23 | Staggered | 18×7.5 +25 | 18×8.5 +40 | 5×112 | 66.6mm | 225/45ZR18 | 255/40ZR18 |
G22/G23 | Staggered | 19×8 +27 | 19×8.5 +40 | 5×112 | 66.6mm | 225/40ZR19 | 255/35ZR19 |
G22/G23 | Staggered | 20×8 +27 | 20×8.5 +40 | 5×112 | 66.6mm | 225/35ZR20 | 255/30ZR20 |
G26 | Square | 18×8.5 +36 | 18×8.5 +36 | 5×112 | 66.6mm | 245/45ZR18 | 245/45ZR18 |
G26 | Staggered | 18×8.5 +36 | 18×9 +42 | 5×112 | 66.6mm | 245/45ZR18 | 255/45ZR18 |
G26 | Staggered | 19×8.5 +35 | 19×9 +42 | 5×112 | 66.6mm | 245/40ZR19 | 255/40ZR19 |
G26 | Staggered | 20×8 +27 | 20×8.5 +40 | 5×112 | 66.6mm | 225/35ZR20 | 255/30ZR20 |
Available BMW M440i Wheels
19" Fitments
Wheel Name | Application | Suggested Wheel Size (Front) | Suggested Wheel Size (Rear) | Suggested Tire Size (Front) | Suggested Tire Size (Rear) |
---|---|---|---|---|---|
CFF46 | Staggered | 19×9 +28 | 19×10 +28 | 255/35 | 285/30 |
CFF70 | Staggered | 19×9 +28 | 19×10 +35 | 255/35 | 285/30 |
CFF70 | Staggered | 19×9 +28 | 19×10 +28 | 255/35 | 285/30 |
CFF72 | Staggered | 19×9 +28 | 19×10 +38 | 255/35 | 285/30 |
CFF75 | Staggered | 19×9 +28 | 19×10 +35 | 255/35 | 285/30 |
CFF300 | Staggered | 19×9 +30 | 19×10 +38 | 255/35 | 285/30 |
20" Fitments
Wheel Name | Application | Suggested Wheel Size (Front) | Suggested Wheel Size (Rear) | Suggested Tire Size (Front) | Suggested Tire Size (Rear) |
---|---|---|---|---|---|
CFF25 | Staggered | 20×9 +35 | 20×10 +40 | 255/30 | 275/30 |
CFF25 | Square | 20×9 +35 | 20×9 +35 | 255/30 | 255/30 |
CFF43 | Staggered | 20×9 +20 | 20×10 +38 | 255/30 | 275/30 |
CFF43 | Staggered | 20×9 +35 | 20×10 +38 | 255/30 | 275/30 |
CFF70 | Staggered | 20×9 +35 | 20×10 +40 | 255/30 | 275/30 |
CFF75 | Staggered | 20×9 +35 | 20×10 +35 | 255/30 | 275/30 |
CFF76 | Staggered | 20×9 +35 | 20×10 +35 | 255/30 | 275/30 |
CFF300 | Staggered | 20×9 +30 | 20×10 +32 | 255/30 | 275/30 |
Additional Information
When shopping for the best BMW performance wheels for your M440i, there’s several crucial factors that need to be considered beyond basic fitment and aesthetics to ensure optimal performance, safety, and longevity.
Brake Clearance
Brake clearance is a critical aspect of wheel fitment. Most Curva Concepts wheels are engineered to ensure OEM brake clearance, allowing for seamless installation without compromising braking performance. However, it’s important to note that aftermarket big brake kits (BBK) may affect fitment and clearance. If you’ve upgraded your braking system, consult with our fitment experts to ensure compatibility.
Suspension Considerations
Suspension modifications can significantly impact wheel clearance and fitment. Certain aftermarket suspensions, such as Height Adjustable Springs (HAS) kits and some non-linear coilovers, may reduce clearance and cause fitment issues. It’s crucial to consider your current or planned suspension setup when selecting wheels to avoid any potential conflicts.
Quality and Durability
Curva Concepts wheels undergo rigorous independent testing processes to ensure the highest standards of quality and safety. Our wheels are JWL and VIA certified, guaranteeing their structural integrity and performance capabilities. The strength and lightweight design of our wheels contribute to overall vehicle performance and efficiency, enhancing both the driving experience and fuel economy of your M440i.
Warranty and Support
We stand behind the quality of our products with comprehensive warranty options and an accidental damage replacement policy. Our dedicated customer support team is always ready to assist you with any questions or concerns regarding your wheel purchase. For detailed information on our warranty and support services, please visit our warranty page.
WHICH BMW M440i FITMENT IS RIGHT FOR ME?
Get in touch with our fitment experts to see which diameter, width and offset is right for you and your M440i
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Frequently Asked Questions
Should I go with a square or staggered wheel setup on my M440i?
It depends on your driving style and priorities. A staggered setup gives your M440i a more aggressive rear-wheel-drive feel with wider tires in the back, providing extra grip for acceleration and a sportier stance. The downside is you can't rotate the tires front to back, so your rear tires will wear faster. A square setup offers more neutral handling characteristics and lets you rotate all four tires to extend their life, which saves money over time. For most M440i owners who want that classic BMW performance look and feel, we recommend going staggered. Our Curva Concepts wheels are available in both configurations to match your preference.
Can I rotate my tires if I have a staggered wheel setup?
Yes, but with limitations. You can only rotate staggered tires side to side on the same axle, meaning left rear to right rear and left front to right front. You cannot rotate them front to back since the tire sizes are different. This side-to-side rotation can still help with uneven wear patterns and reduce tire noise, extending the useful life of your tires. Just make sure your tires aren't directional, as directional tires can only be mounted in one direction. If you want full tire rotation flexibility, you'll need to go with a square setup where all four tires are the same size.
What bolt pattern and center bore does my M440i need?
Your BMW M440i uses a 5x112 bolt pattern and requires a 66.6mm center bore. This applies to all G22, G23, and G26 models including both rear-wheel drive and xDrive variants. All of our Curva Concepts wheels are manufactured to these exact specifications for your M440i, ensuring a perfect hub-centric fit without vibrations. We never recommend using adapter plates or non-hub-centric wheels, as proper fitment is critical for both safety and performance.
Do I need wheel spacers with aftermarket wheels on my M440i?
Not necessarily. Whether you need spacers depends on the offset of the wheels you choose. Factory M440i wheels typically sit fairly tucked in, which is why many owners add 10-13mm spacers in the front and 13-15mm in the rear for a more aggressive look. However, our Curva Concepts wheels are designed with optimized offsets that give you that flush, aggressive stance right out of the box without requiring spacers. This means less complexity, better reliability, and no concerns about extended wheel studs. If you specifically want your wheels to sit even more flush with the fenders, spacers are an option, but they're not required for proper fitment with our wheels.
What wheel sizes can I run on my M440i?
Your M440i can accommodate wheel sizes ranging from 18 inches up to 20 inches in diameter. For 18-inch setups, you can run anywhere from 7.5 to 9 inches wide depending on whether you choose square or staggered. For 19-inch wheels, widths between 8 and 10 inches work well. And for 20-inch wheels, you're looking at 8 to 10 inches wide. The key is matching the right offset with your chosen width to ensure proper clearance for your brakes, suspension, and fenders. Our Curva Concepts fitment guide provides specific recommended sizes for each of our wheel designs, taking all the guesswork out of selecting the perfect setup for your M440i.
Will flow forged wheels work on my M440i?
Absolutely. Flow forged wheels are an excellent choice for your M440i because they offer the perfect balance of lightweight construction and exceptional strength. Our Curva Concepts flow forged wheels are significantly lighter than traditional cast wheels, which reduces unsprung weight for better handling, acceleration, and brake response. They're also stronger and more impact-resistant than cast wheels while being more affordable than fully forged options. The manufacturing process creates a denser, stronger barrel that can handle spirited driving and track use. We specifically engineer our CFF series flow forged wheels with the M440i in mind, so you get maximum performance without compromising quality or safety.