2015 BMW 550i GT Spare Tire
The BMW 550i GT does not come equipped with a typical full-sized spare tire; instead, it utilizes the run-flat tire technology, which permits the car to be driven at a reduced speed for a limited distance even after a puncture. The stock tire size for BMW 550i GT is 245/40R20 for the front and 275/35R20 for the rear. However, the spare tire size may differ depending on manufacturer's recommendations. Some drivers opt for a compact spare or 'donut' spare for emergencies only, which can save space and weight compared to a full-sized spare. Ideally, the best option for a spare tire would be to match the car's original tires to ensure optimal performance and safety, but this should be confirmed with a BMW dealership or trusted tire retailer.
2015 BMW 550i GT comes with 3 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 2015 BMW 550i GT spare tire size.
245/40R20 (Rear: 275/35R20)
245/40R20 tire has a diameter of 27.7". These temporary spare tires fit the acceptable tire diameter range of 26.9" to 28.5".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/80D18from $257.05 | 27.1" | -2.2% |
| T155/70R19from $237.96 | 27.6" | -0.4% |
| T155/85D18from $185.43 | 28.4" | 2.5% |
| T145/80R19from $183.34 | 28.1" | 1.4% |
| T165/80R17from $166.85 | 27.4" | -1.1% |
| T145/65R20from $146.43 | 27.4" | -1.1% |
| T165/80D17from $124.93 | 27.4" | -1.1% |
| T145/85R18from $118.73 | 27.7" | 0% |
| T155/90D17from $114.99 | 28" | 1.1% |
| T155/90D16from $92.99 | 27" | -2.5% |
| T165/70D18 | 27.1" | -2.2% |
| T165/60R20 | 27.8" | 0.4% |
| T155/90R17 | 28" | 1.1% |
| T155/90R16 | 27" | -2.5% |
| T155/80R18 | 27.8" | 0.4% |
| T155/80D18 | 27.8" | 0.4% |
| T145/90R17 | 27.3" | -1.4% |
| T145/90D17 | 27.3" | -1.4% |
| T145/80R18 | 27.1" | -2.2% |
| T165/70R18 | 27.1" | -2.2% |
245/45R19
245/45R19 tire has a diameter of 27.7". These temporary spare tires fit the acceptable tire diameter range of 26.9" to 28.5".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/80D18from $257.05 | 27.1" | -2.2% |
| T155/70R19from $237.96 | 27.6" | -0.4% |
| T155/85D18from $185.43 | 28.4" | 2.5% |
| T145/80R19from $183.34 | 28.1" | 1.4% |
| T165/80R17from $166.85 | 27.4" | -1.1% |
| T145/65R20from $146.43 | 27.4" | -1.1% |
| T165/80D17from $124.93 | 27.4" | -1.1% |
| T145/85R18from $118.73 | 27.7" | 0% |
| T155/90D17from $114.99 | 28" | 1.1% |
| T155/90D16from $92.99 | 27" | -2.5% |
| T165/70D18 | 27.1" | -2.2% |
| T165/60R20 | 27.8" | 0.4% |
| T155/90R17 | 28" | 1.1% |
| T155/90R16 | 27" | -2.5% |
| T155/80R18 | 27.8" | 0.4% |
| T155/80D18 | 27.8" | 0.4% |
| T145/90R17 | 27.3" | -1.4% |
| T145/90D17 | 27.3" | -1.4% |
| T145/80R18 | 27.1" | -2.2% |
| T165/70R18 | 27.1" | -2.2% |
245/50R18
245/50R18 tire has a diameter of 27.7". These temporary spare tires fit the acceptable tire diameter range of 26.9" to 28.5".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/80D18from $257.05 | 27.1" | -2.2% |
| T155/70R19from $237.96 | 27.6" | -0.4% |
| T155/85D18from $185.43 | 28.4" | 2.5% |
| T145/80R19from $183.34 | 28.1" | 1.4% |
| T165/80R17from $166.85 | 27.4" | -1.1% |
| T145/65R20from $146.43 | 27.4" | -1.1% |
| T165/80D17from $124.93 | 27.4" | -1.1% |
| T145/85R18from $118.73 | 27.7" | 0% |
| T155/90D17from $114.99 | 28" | 1.1% |
| T155/90D16from $92.99 | 27" | -2.5% |
| T165/70D18 | 27.1" | -2.2% |
| T165/60R20 | 27.8" | 0.4% |
| T155/90R17 | 28" | 1.1% |
| T155/90R16 | 27" | -2.5% |
| T155/80R18 | 27.8" | 0.4% |
| T155/80D18 | 27.8" | 0.4% |
| T145/90R17 | 27.3" | -1.4% |
| T145/90D17 | 27.3" | -1.4% |
| T145/80R18 | 27.1" | -2.2% |
| T165/70R18 | 27.1" | -2.2% |
More BMW 550i GT 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.