Mazda B-serie (UN) Wheel Lug Pattern, Offset, and Rim Size Reference
The Mazda B-serie (UN) features specific wheel lug patterns critical for selecting the correct wheels and tires. This model's wheel mounting spec includes lug count multiplied by pitch circle diameter (PCD in mm), complemented by offset (ET) and center bore measurements.\n\nWheel fitment for the Mazda B-serie (UN) varies slightly depending on the production year. The common lug pattern is 6×139.7 mm, with offset values typically ranging between ET20 and ET45. Center bore size is usually around 106.1 mm. Rim sizes commonly fitted include 15-inch and 16-inch diameters, aimed at ensuring optimal clearance and performance.\n\nConsulting the year-sorted data on this site provides Mazda B-serie (UN) owners with precise PCD, offset, and center bore information, ensuring safe and accurate wheel upgrades or replacements. Proper attention to these specifications prevents fitment issues and maintains vehicle handling.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Mazda B-serie (UN) 2.2 8V 4WD | 2006 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2006 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2006 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2006 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 2005 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2005 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2005 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2005 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 2004 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2004 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2004 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2004 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 2003 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2003 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2003 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2003 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 2002 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2002 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2002 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2002 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 2001 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2001 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2001 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2001 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 2000 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 2000 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 2000 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 2000 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.2 8V 4WD | 1999 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D | 1999 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 D 4WD | 1999 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
| Mazda B-serie (UN) 2.5 TD 4WD | 1999 | 235/75R15 | 7 | 15 | 6×139.7 | 12 | 110 | M12*1,5 |
FAQ
- What is the standard lug pattern for the Mazda B-serie (UN)?
- The standard lug pattern is 6×139.7 mm, commonly used across all production years.
- What offset (ET) values are compatible with Mazda B-serie (UN) wheels?
- Offset typically ranges between ET20 and ET45, depending on the specific year and wheel size.
- Why is center bore size important for Mazda B-serie (UN) wheel fitment?
- Correct center bore size, usually around 106.1 mm, ensures the wheel fits securely on the hub and maintains proper alignment.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
