BMW G80 M3 Forged Wheel Fitment Case Study | 19x10 ET12 / 20x10.5 ET5 Staggered Setup

BMW G80 M3 Forged Wheel Fitment Case Study | 19x10 ET12 / 20x10.5 ET5 Staggered Setup

2022 BMW M3 Competition (G80) | Forgex Speed Lightweight Forged Wheels

Finish: Silver
Front: 19x10.0 ET12
Rear: 20x10.5 ET5
PCD: 5x112
Center Bore: 66.6 mm
Weight: 10.3 kg (F) / 11.4 kg (R)
Load Rating: 750 kg per Wheel

Vehicle Setup

Vehicle: 2022 BMW M3 Competition (G80)
Wheel Model: Forgex Speed
Wheel Type: Lightweight Forged Wheels
Construction: 6061-T6 Forged Aluminum

Front Fitment: 19x10.0 ET12
Rear Fitment: 20x10.5 ET5

PCD: 5x112
Center Bore: 66.6 mm (Hub-Centric)
Bolt Seat: 15x32x60 Degree Conical Seat
Load Rating: 750 kg per Wheel
Finish: Silver

Fitment & Design

The Forgex Speed G80 M3 setup combines a 19-inch front and 20-inch rear staggered configuration, engineered to achieve a flush fitment without spacers or camber adjustment.

The front ET12 and rear ET5 offsets are selected to follow the factory body contours, filling the wheel arches with a balanced stance while maintaining proper clearance for suspension movement.

The multi-spoke design was developed around the G80 M3’s sharp body lines and M performance character. The spoke layout balances brake visibility, structural presence, and visual proportion — providing enough openness to showcase the M Compound brake system while maintaining the aggressive appearance expected from an M platform.

The Silver finish delivers a clean OEM+ appearance, complementing stock vehicles as well as lowered and aero-equipped builds.

Installation is direct bolt-on. The wheels utilize the OEM 5x112 bolt pattern, 66.6 mm hub-centric bore, and factory-style conical seats without requiring adapter rings.

Vehicle Response

Built from lightweight forged aluminum, the Forgex Speed front wheel weighs 10.3 kg, while the rear wheel weighs 11.4 kg.

Compared with typical OEM cast wheel configurations, the reduced wheel weight helps lower rotational mass and optimize suspension response. The result is improved steering feedback, more consistent wheel control, and enhanced overall vehicle balance.

The staggered diameter approach — 19-inch front for precise steering response and 20-inch rear for increased rear tire capacity — is engineered around the G80 M3 chassis and the torque delivery of the BMW S58 engine.

This configuration provides a performance-focused stance while maintaining the driving characteristics expected from the M platform.

Manufacturing & Quality

Every Forgex Speed forged wheel is manufactured in-house using 6061-T6 aluminum billet and a 12,000-ton closed-die forging process.

The forging process optimizes material strength and fatigue resistance before each wheel is CNC-machined to final specifications.

Before production, wheel designs undergo FEA simulation to validate structural performance. During manufacturing, each wheel passes multiple inspection stages, including dimensional measurement, radial and lateral runout testing, and balance verification.

Every wheel is serialized and traceable to its forging batch.

Production follows TUV-certified standards, with compliance available for JWL, VIA, and DOT requirements according to market specifications.

All Forgex Speed forged wheels are backed by a Lifetime Structural Warranty.

Engineered for Global Performance Partners

Forgex Speed supports global dealers, tuning shops, and automotive brands with direct manufacturing capability.

From vehicle-specific fitment development to OEM and private-label programs, we provide:

Custom offset engineering

Finish customization

Technical fitment support

Branded packaging solutions

With a minimum order quantity of one set, partners can validate new fitments, support individual customer builds, or expand their wheel portfolio without large inventory commitments.

Professional product photography is included with every order, providing ready-to-use assets for websites, marketplaces, and social media channels.

BMW Fitment Development

The G80 M3 is one example of Forgex Speed’s vehicle-specific engineering approach.

Additional BMW applications include:

BMW G82 M4

BMW F87 M2 Competition

BMW G15 M850i

BMW G20 340i M Sport

BMW G22 440i

BMW G01 X3 M40i

Each application is developed around chassis-specific requirements, including hub geometry, brake clearance, suspension travel, and wheel positioning.

Why Choose Forgex Speed

Vehicle-Specific Engineering
Every fitment is developed for the target chassis, not adapted from generic wheel designs.

Lightweight Forged Construction
6061-T6 aluminum forged wheels produced through a 12,000-ton forging process.

Factory-Direct Manufacturing
In-house forging, CNC machining, inspection, and quality control under one production system.

Global Dealer Support
1-set MOQ, technical documentation, OEM/private-label solutions, and fitment assistance.

Lifetime Structural Warranty
Every Forgex Speed forged wheel is backed by long-term structural protection.