BMW 3 SeriesG20 / G21

Before you choose wheels.

A good-looking setup is only useful if the details match your car. Start with these generation-specific checks.

1. Identify M340i or other brake packages and xDrive requirements before comparing setups.
2. Identify the exact body, drivetrain and M versus non-M configuration before transferring wheel fitment.
3. Verify mounting hardware, brake clearance and front/rear tire rolling diameters on the actual car.

Record the complete setup.

Track front and rear separately, even on a square setup. Wheel diameter and width alone cannot establish clearance.

Wheels

Exact brand and model, diameter × width, nominal offset, bolt pattern and hub bore.

Spacers

Explicit front and rear thickness in millimeters. Enter zero only after confirming there are no spacers.

Tires

Brand, model and full size on each axle. Nominal sizes do not guarantee the same measured section width.

The car

Market, model year, trim, body style, brake package, suspension, alignment and any fender modifications.

Real-world result

Rubbing at steering lock, under compression and with passengers or cargo. Include conditions, not just “fits.”