Subaru Tribeca (B9) Wheel Lug Pattern, Offset, and Rim Size Reference
The Subaru Tribeca (B9) uses a specific wheel lug pattern to ensure proper fitment and safe mounting. Key specifications include the lug count and pitch circle diameter (PCD), along with wheel offset (ET) and center bore measurements essential for compatibility.\n\nTypically, the Tribeca (B9) models from 2005 to 2014 come with a 5×114.3 mm bolt pattern, which is a common PCD for many Subaru vehicles. The wheel offset generally ranges between ET50 and ET55, designed to maintain proper clearance and handling characteristics. Center bore diameter is approximately 56.1 mm, allowing the wheel hub to center precisely.\n\nRim size options vary by year and trim but mostly include 17 to 20-inch diameters to balance performance and aesthetics. When selecting aftermarket wheels or replacements, matching these specifications is critical to ensure safe and optimized driving performance.\n\nOur year-sorted Subaru Tribeca (B9) wheel lug pattern catalog provides clear data for each model year, helping enthusiasts and technicians find the exact PCD, offset, and bore sizes for their wheels. Accurate wheel fitment helps avoid vibrations and maintains factory handling dynamics.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Subaru Tribeca (B9) 3.0 | 2019 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2019 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2018 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2018 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2017 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2017 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2016 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2016 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2015 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2015 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2014 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2014 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2013 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2013 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2012 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2012 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2011 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2011 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2010 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2010 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2009 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2009 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2008 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2008 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2007 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.6 | 2007 | 255/55R18 | 8 | 18 | 5×114.3 | 55 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2006 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
| Subaru Tribeca (B9) 3.0 | 2005 | 255/55R18 | 8 | 18 | 5×114.3 | 50 | 56.1 | M12*1,25 |
FAQ
- What is the Subaru Tribeca (B9) bolt pattern?
- The Subaru Tribeca (B9) typically has a 5×114.3 mm bolt pattern across all model years.
- What wheel offset ET is recommended for Subaru Tribeca (B9)?
- Recommended wheel offset for the Subaru Tribeca (B9) ranges from ET50 to ET55 depending on the model year.
- What size center bore fits Subaru Tribeca (B9) wheels?
- The standard center bore diameter for Subaru Tribeca (B9) wheels is approximately 56.1 mm.
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 |
