WD121 Cast Alloy Wheel
WD121 is a cast alloy wheel (rim) in 1 finish: Silver Machined Lip. It is an OEM-fit replacement, made to the size, bolt pattern, offset and center bore of the original wheel. It comes in 17–18 inch: 4 sizes (17x8, 17x9, 18x8, 18x9.5), 1 bolt pattern (5x120), offset ET 13–25 mm and center bore 74.1 mm. Listed for BMW. Not sure what PCD, ET and CB mean? Read how to choose wheels.
More wheels for BMW.
Finish
Wheel sizes: 17x8, 17x9, 18x8, 18x9.5
Bolt patterns (PCD): 5x120
| Size (D x J) | Offset (ET) | Bolt pattern (PCD) | Center bore (CB) | Hole type | Fits | Stock | Copy specs |
|---|---|---|---|---|---|---|---|
| 17x8 | 13 | 5x120 | 74.1 | Cone seat | BMW | 3 | |
| 17x9 | 25 | 5x120 | 74.1 | Cone seat | BMW | ||
| 18x8 | 13 | 5x120 | 74.1 | Cone seat | BMW | ||
| 18x9.5 | 25 | 5x120 | 74.1 | Cone seat | BMW |
What these numbers mean
- Size (D x J)
- Diameter in inches, then rim width in inches: 17x8 is a 17 inch wheel with a 8 inch wide rim. The J after a width, as in 8J, names the rim flange profile.
- Offset (ET)
- The distance in mm from the wheel's centerline to its mounting face. WD121 comes in ET 13–25; a lower ET sits the wheel further out.
- Bolt pattern (PCD)
- The number of bolts and the diameter in mm of the circle they sit on: 5x120 is 5 bolts on a 120 mm circle. It must match the vehicle.
- Center bore (CB)
- The central hole that sits over the vehicle's hub: 74.1 mm for WD121. A bore larger than the hub needs centering rings.
Fits the same bolt pattern and size
Same PCD, wheel diameter and a compatible center bore.
Similar finish and range
Same collection, with a matching finish or vehicle brand.
Similar design
Wheels that look alike, from the same collection. Check the bolt pattern before you order.
