2018 BMW 320i Spare Tire
The BMW 320i, a staple of engineering finesse in the luxury compact car segment, often prompts its owners to inquire about the specifics of its spare tire, a critical component for roadside peace-of-mind. Traditionally, the BMW 320i is equipped with run-flat tires, which are designed to allow driving for a limited distance after a puncture, thereby not including a conventional spare tire as part of the standard equipment. However, for owners who prioritize having a spare, options are available. Specifically, the size of a compatible spare tire for the BMW 320i typically mirrors that of its standard tires to ensure compatibility and maintain the vehicle's driving dynamics in case of a swap-out. This generally points towards a compact, temporary-use spare tire (also known as a "donut") designed to save space and weight. The exact dimensions can vary depending on the year and specific model of the 320i, but a common size is a T125/80R17 or similar, intended strictly for temporary use until a full-size tire can be repaired or replaced. Availability of these spares can be sourced through authorized BMW dealerships or aftermarket suppliers, ensuring that owners can secure peace of mind through preparation for unforeseen flat tire situations.
2018 BMW 320i comes with 2 OEM tire size options. Select the original equipment the tire size installed on your vehicle to see all spare tires that have roughly the same tire diameter and can be used as a temporary replacement in the event of a flat tire. Remember that load carrying capacity of the spare tire must be the same or higher than the load carrying capacity of the original equipment tires in order to safely support the weight of your vehicle. Refer to vehicle owner's manual or contact BMW dealership to confirm the correct 2018 BMW 320i spare tire size.
225/45R18
225/45R18 tire has a diameter of 25.9". These temporary spare tires fit the acceptable tire diameter range of 25.1" to 26.7".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T155/70R18from $178.60 | 26.6" | 2.7% |
| T155/70D17from $175.43 | 25.6" | -1.2% |
| T155/60R18from $164.19 | 25.3" | -2.3% |
| T135/90R17from $158.19 | 26.6" | 2.7% |
| T135/90R16from $155.20 | 25.6" | -1.2% |
| T135/70R19from $147.99 | 26.5" | 2.3% |
| T155/70R17from $139.76 | 25.6" | -1.2% |
| T135/70D18from $135.05 | 25.5" | -1.5% |
| T135/80R17from $133.66 | 25.5" | -1.5% |
| T135/70R18from $131.66 | 25.5" | -1.5% |
| T135/80R18from $125.96 | 26.5" | 2.3% |
| T145/70D18from $118.97 | 26" | 0.4% |
| T115/95R17from $117.54 | 25.6" | -1.2% |
| T135/80D17from $112.58 | 25.5" | -1.5% |
| T145/90D16from $88.99 | 26.3" | 1.5% |
| T145/80D17from $81.99 | 26.1" | 0.8% |
| T155/70D18 | 26.6" | 2.7% |
| T155/80D16 | 25.7" | -0.8% |
| T155/80R16 | 25.7" | -0.8% |
| T165/70D17 | 26.1" | 0.8% |
| T165/70R17 | 26.1" | 0.8% |
| T185/55D18 | 26" | 0.4% |
| T185/55R18 | 26" | 0.4% |
| T185/60D17 | 25.7" | -0.8% |
| T145/90R16 | 26.3" | 1.5% |
| T145/80R17 | 26.1" | 0.8% |
| T145/70R18 | 26" | 0.4% |
| T125/70R19 | 25.9" | 0% |
| T135/60D19 | 25.4" | -1.9% |
| T135/60R19 | 25.4" | -1.9% |
| T135/80D18 | 26.5" | 2.3% |
| T135/90D16 | 25.6" | -1.2% |
| T135/90D17 | 26.6" | 2.7% |
| T145/65D18 | 25.4" | -1.9% |
| T145/65R18 | 25.4" | -1.9% |
| T185/60R17 | 25.7" | -0.8% |
225/50R17
225/50R17 tire has a diameter of 25.9". These temporary spare tires fit the acceptable tire diameter range of 25.1" to 26.7".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T155/70R18from $178.60 | 26.6" | 2.7% |
| T155/70D17from $175.43 | 25.6" | -1.2% |
| T155/60R18from $164.19 | 25.3" | -2.3% |
| T135/90R17from $158.19 | 26.6" | 2.7% |
| T135/90R16from $155.20 | 25.6" | -1.2% |
| T135/70R19from $147.99 | 26.5" | 2.3% |
| T155/70R17from $139.76 | 25.6" | -1.2% |
| T135/70D18from $135.05 | 25.5" | -1.5% |
| T135/80R17from $133.66 | 25.5" | -1.5% |
| T135/70R18from $131.66 | 25.5" | -1.5% |
| T135/80R18from $125.96 | 26.5" | 2.3% |
| T145/70D18from $118.97 | 26" | 0.4% |
| T115/95R17from $117.54 | 25.6" | -1.2% |
| T135/80D17from $112.58 | 25.5" | -1.5% |
| T145/90D16from $88.99 | 26.3" | 1.5% |
| T145/80D17from $81.99 | 26.1" | 0.8% |
| T155/70D18 | 26.6" | 2.7% |
| T155/80D16 | 25.7" | -0.8% |
| T155/80R16 | 25.7" | -0.8% |
| T165/70D17 | 26.1" | 0.8% |
| T165/70R17 | 26.1" | 0.8% |
| T185/55D18 | 26" | 0.4% |
| T185/55R18 | 26" | 0.4% |
| T185/60D17 | 25.7" | -0.8% |
| T145/90R16 | 26.3" | 1.5% |
| T145/80R17 | 26.1" | 0.8% |
| T145/70R18 | 26" | 0.4% |
| T125/70R19 | 25.9" | 0% |
| T135/60D19 | 25.4" | -1.9% |
| T135/60R19 | 25.4" | -1.9% |
| T135/80D18 | 26.5" | 2.3% |
| T135/90D16 | 25.6" | -1.2% |
| T135/90D17 | 26.6" | 2.7% |
| T145/65D18 | 25.4" | -1.9% |
| T145/65R18 | 25.4" | -1.9% |
| T185/60R17 | 25.7" | -0.8% |
More BMW 320i Spare Tires
All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for the correct spare tire size configuration.