Porsche Boxster Spyder Tire Sizes and Rim Specifications by Year and Trim
The Porsche Boxster Spyder features specific tire size markings and rim widths that vary by model year and trim. Knowing these specifications is essential for proper tire replacements and upgrades.\n\nTire dimensions are typically marked on the sidewall and include width, aspect ratio, and diameter (e.g., 235/40ZR19). Rim widths correspond to the diameter in inches combined with the rim width in inches, which affects tire fitment and performance.\n\nFor practical comparison, early Boxster Spyder trims often use narrower rims and different tire profiles than later models. Reviewing the exact tire size markings and rim dimensions per year ensures compatibility and maintains driving dynamics.\n\nChecking OEM specifications or detailed references by model year and trim helps confirm correct wheel and tire combinations for the Porsche Boxster Spyder.
| Make / model / trim | Year | Tire size | Wheel |
|---|---|---|---|
| Porsche Boxster Spyder 3.8 | 2019 | 235/35R20 | 8.5" × 20" |
| Porsche Boxster Spyder 3.8 | 2018 | 235/35R20 | 8.5" × 20" |
| Porsche Boxster Spyder 3.8 | 2017 | 235/35R20 | 8.5" × 20" |
| Porsche Boxster Spyder 3.8 | 2016 | 235/35R20 | 8.5" × 20" |
| Porsche Boxster Spyder 3.8 | 2015 | 235/35R20 | 8.5" × 20" |
| Porsche Boxster Spyder 3.4 RS 60 | 2008 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster Spyder 3.4 RS 60 | 2007 | 205/55R17 | 6.5" × 17" |
For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Porsche Boxster Spyder.
FAQ
- What tire sizes are standard on the Porsche Boxster Spyder?
- Tire sizes vary by model year, but common configurations include 235/40ZR19 for the front and 265/40ZR19 for the rear.
- How do rim width and diameter affect the Boxster Spyder's performance?
- Proper rim width and diameter ensure optimal tire fit and handling characteristics, contributing to the vehicle's balanced performance.
- Can I interchange tires between different Boxster Spyder trims?
- Interchanging tires is possible if the rim diameter and width match the specifications for each trim and model year.
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 |