Compatible With: 330i, 330e, M340i, M340i xDrive, 320i, 318i, 330d — All G20/G21/G28 5x112 Models
The modern BMW 3 Series lineup — including the 330i, 330e, M340i, 320i, and 318i — all share the same 5x112 bolt pattern and 66.6 mm hub bore, making wheel fitment consistent across the entire G-chassis generation (G20 sedan, G21 touring, G28 long wheelbase).
This guide gives you the clearest, simplest overview of wheel sizes, offsets, staggered vs. square setups, and tire sizing so you can upgrade confidently.
1. Bolt Pattern, Center Bore & Fitment Requirements
Bolt Pattern: 5x112
Used across all G-chassis 3 Series models:
- 330i / 330i xDrive
- 330e / 330e xDrive
- M340i / M340i xDrive
- 320i / 318i
Center Bore: 66.6 mm
Ensures hub-centric mounting and vibration-free performance.
Why this matters:
- No vibration
- Perfect rotor/hub alignment
- Safe high-speed stability
- No adapters needed
2. Wheel Sizes That Fit All 5x112 BMW 3 Series Models
The G20/G21/G28 chassis supports 18", 19", and 20" wheel diameters with no issues.
✔ 18-Inch Wheels
Common widths:
- 18×8.0
- 18×8.5
Perfect for:
- Daily driving
- Winter setups
- Square fitment
- xDrive and RWD
✔ 19-Inch Wheels (most popular)
Most common G-chassis widths:
- 19×8.0
- 19×8.5
- 19×9.0
- 19×9.5
Best 19" square widths:
- 19×8.0
- 19×8.5
Popular 19" staggered setups:
- 19×8.0 front / 19×9.0 rear
- 19×8.5 front / 19×9.5 rear
✔ 20-Inch Wheels
Common widths:
- 20×8.0
- 20×8.5–9.5
Great for a more aggressive, performance-oriented look.
This Replica Wheel comes in both 19" Replica or 20" Replica ⬆️
3. Offset Ranges for the G-Chassis (Very Important)
Ideal everyday fitment:
- Front: ET25–ET35
- Rear: ET25–ET40
Flush, aggressive stance:
- Front: ET25–ET30
- Rear: ET25–ET35
Avoid:
→ Front ET37 or higher (wheel sits too far inward)
Lower offset (ET25):
Creates the best flush look without rubbing, safe on all models including M340i.
4. Square vs. Staggered Setups (Works on ALL Models)
Square / Non-Staggered
Perfect for:
- 330i / 330e daily driving
- xDrive traction
- Winter setups
- Tire rotation
- Best longevity
Common square wheel sizes:
- 18×8.0
- 18×8.5
- 19×8.0
- 19×8.5
Square tire size (one size only):
➡️ 225/40ZR19 all around
Staggered Setups (Wider Rear, Sportier Look)
Staggered fitment works on ALL 5x112 BMW 3 Series models, including:
- 330i
- 330i xDrive
- 330e / 330e xDrive
- 320i / 318i
- M340i / M340i xDrive
Both RWD and xDrive handle staggered perfectly.
Popular staggered wheel systems:
- 19×8.0 front / 19×9.0 rear
- 19×8.5 front / 19×9.5 rear
- 20×8.0 front / 20×8.5–9.5 rear
Staggered tire sizes:
- Front: 225/40ZR19
- Rear: 255/35ZR19
5. Tire Sizes That Work on ALL 330i, M340i, 330e, 320i Models
✔ 18-inch square:
- 225/45ZR18
✔ 19-inch square:
- 225/40ZR19 (one size only)
✔ 19-inch staggered:
- Front: 225/40ZR19
- Rear: 255/35ZR19
✔ 20-inch staggered:
- Front: 225/35ZR20
- Rear: 255/30ZR20
All maintain the correct rolling diameter for xDrive & RWD.
6. Wheel Types: OEM-Style, Replica & Aftermarket
(Simple, combined section)
All wheel types fit the same as long as they meet the BMW specs:
- 5x112 bolt pattern
- 66.6 mm center bore
- Correct offsets
Replica / OE-Style Wheels
- Most affordable
- Same fitment as OEM
- OEM-inspired designs in more finishes/sizes
Aftermarket Wheels
- Lighter
- More concave
- Wider offset options (ET25 for flush stance)
- Great for sporty or aggressive builds
Both are 100% safe and direct-fit options for ALL G-chassis models.
7. Ready to Upgrade? Use Our Discount Code
Perfect fitment guaranteed for all BMW 3 Series models, including:
- 330i / 330i xDrive
- 330e / 330e xDrive
- M340i / M340i xDrive
- 320i / 318i
Choose from our most popular 3 Series wheel options:
- 18×8" square
- 19×8.5" non-staggered
- 19×9.5" staggered rear setups
- 20" aggressive performance fitments
Browse the full BMW 3 Series Wheel Collection
👉 Use code: 1stSet at checkout for a discount on your first order.