2018 BMW 340i GT xDrive Spare Tire
The BMW 340i GT xDrive, a model cherished for its blend of performance, luxury, and the practicality of a Gran Turismo design, doesn't come equipped with a standard spare tire due to its focus on maximizing interior space and enhancing fuel efficiency by reducing weight. BMW opted for run-flat tires as a standard feature, allowing drivers to continue for a limited distance at a reduced speed after a puncture. However, for owners who prefer the peace of mind that comes with having a spare tire, aftermarket solutions are available. The recommended spare tire size for the BMW 340i GT xDrive to ensure compatibility with its all-wheel drive system and to maintain handling characteristics is typically a compact temporary spare, often referred to as a "donut," with a size specification of around 135/80R17. This dimension balances the need for a smaller, lightweight option that doesn't take excessive space in the vehicle while being capable enough to safely get you to a service location in the event of a tire failure. It is essential to also acquire a compatible jack and lug wrench, considering these may not be present if the vehicle was not originally equipped with a spare. Consulting with a BMW dealer or a trusted automotive parts provider is advisable to ensure the chosen spare tire and tools are suitable for the specific model year of the 340i GT xDrive, as slight variations might exist between different production years.
2018 BMW 340i GT xDrive 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 340i GT xDrive spare tire size.
225/45R19
225/45R19 tire has a diameter of 27". These temporary spare tires fit the acceptable tire diameter range of 26.2" to 27.8".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/60R20from $271.36 | 26.9" | -0.4% |
| T145/80D18from $257.05 | 27.1" | 0.4% |
| T155/70R19from $237.96 | 27.6" | 2.2% |
| T155/70R18from $178.60 | 26.6" | -1.5% |
| T165/80R17from $166.85 | 27.4" | 1.5% |
| T135/90R17from $158.19 | 26.6" | -1.5% |
| T135/70R19from $147.99 | 26.5" | -1.9% |
| T145/65R20from $146.43 | 27.4" | 1.5% |
| T135/80R18from $125.96 | 26.5" | -1.9% |
| T165/80D17from $124.93 | 27.4" | 1.5% |
| T145/85R18from $118.73 | 27.7" | 2.6% |
| T155/80D17from $97.90 | 26.8" | -0.7% |
| T155/90D16from $92.99 | 27" | 0% |
| T145/90D16from $88.99 | 26.3" | -2.6% |
| T165/70D18 | 27.1" | 0.4% |
| T155/90R16 | 27" | 0% |
| T155/80R17 | 26.8" | -0.7% |
| T155/70D18 | 26.6" | -1.5% |
| T145/90R17 | 27.3" | 1.1% |
| T145/90R16 | 26.3" | -2.6% |
| T145/90D17 | 27.3" | 1.1% |
| T145/80R18 | 27.1" | 0.4% |
| T135/90D17 | 26.6" | -1.5% |
| T135/80D18 | 26.5" | -1.9% |
| T165/70R18 | 27.1" | 0.4% |
225/50R18
225/50R18 tire has a diameter of 26.9". These temporary spare tires fit the acceptable tire diameter range of 26.1" to 27.7".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/60R20from $271.36 | 26.9" | 0% |
| T145/80D18from $257.05 | 27.1" | 0.7% |
| T155/70R19from $237.96 | 27.6" | 2.6% |
| T155/70R18from $178.60 | 26.6" | -1.1% |
| T165/80R17from $166.85 | 27.4" | 1.9% |
| T135/90R17from $158.19 | 26.6" | -1.1% |
| T135/70R19from $147.99 | 26.5" | -1.5% |
| T145/65R20from $146.43 | 27.4" | 1.9% |
| T135/80R18from $125.96 | 26.5" | -1.5% |
| T165/80D17from $124.93 | 27.4" | 1.9% |
| T155/80D17from $97.90 | 26.8" | -0.4% |
| T155/90D16from $92.99 | 27" | 0.4% |
| T145/90D16from $88.99 | 26.3" | -2.2% |
| T165/70D18 | 27.1" | 0.7% |
| T155/90R16 | 27" | 0.4% |
| T155/80R17 | 26.8" | -0.4% |
| T155/70D18 | 26.6" | -1.1% |
| T145/90R17 | 27.3" | 1.5% |
| T145/90R16 | 26.3" | -2.2% |
| T145/90D17 | 27.3" | 1.5% |
| T145/80R18 | 27.1" | 0.7% |
| T135/90D17 | 26.6" | -1.1% |
| T135/80D18 | 26.5" | -1.5% |
| T165/70R18 | 27.1" | 0.7% |
More BMW 340i GT xDrive 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.