BMW I8 (I12) Tire Sizes and Rim Specifications by Year and Trim
The BMW I8 (I12), known for its futuristic design and hybrid powertrain, features specific tire sizes and rim dimensions that vary by model year and trim level. Original equipment tires often include front sizes of 215/45ZR20 and rear sizes of 245/40ZR20, paired with rims measuring approximately 8.5×20 inches (front) and 10.0×20 inches (rear).\n\nModel year updates and trim variations can affect tire markings, with some performance-focused trims using stickier compounds or slightly different tire widths for improved handling. Always verify tire sidewall markings to match original specifications, ensuring safe operation and optimal performance.\n\nWhen comparing trims of the BMW I8 (I12), pay close attention to rim width × diameter references to accommodate tire profile differences. Slight changes in rim width may require adjustments in tire size to maintain proper fitment and driving dynamics.\n\nFor replacement tires and rims, consult manufacturer guidelines or trusted databases to confirm compatibility based on year and trim, as fitment variations can impact drive comfort, safety, and vehicle aesthetics.
| Make / model / trim | Year | Tire size | Wheel |
|---|---|---|---|
| BMW I8 (I12) Hybrid | 2019 | 195/50R20 | 7" × 20" |
| BMW I8 (I12) Hybrid | 2018 | 195/50R20 | 7" × 20" |
| BMW I8 (I12) Hybrid | 2017 | 195/50R20 | 7" × 20" |
| BMW I8 (I12) Hybrid | 2016 | 195/50R20 | 7" × 20" |
| BMW I8 (I12) Hybrid | 2015 | 195/50R20 | 7" × 20" |
| BMW I8 (I12) Hybrid | 2014 | 195/50R20 | 7" × 20" |
For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for BMW I8 (I12).
FAQ
- What are the stock tire sizes for the BMW I8 (I12)?
- Stock tire sizes typically are 215/45ZR20 at the front and 245/40ZR20 at the rear for most BMW I8 (I12) model years.
- How do rim sizes vary between BMW I8 trims?
- Rim widths are generally 8.5 inches front and 10 inches rear, but some trims may have performance-focused versions with slight variations to accommodate different tires.
- Can I use tires with different size markings than stock on the BMW I8 (I12)?
- Using tires with different markings requires careful consideration of rim width, diameter, and speed rating to ensure safety and performance are not compromised.
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 |