Buick Regal TourX Spare Tire

The Buick Regal TourX, being an advanced and luxurious wagon, is designed to offer an enjoyable and secure driving experience. The issue of a spare tire for this vehicle, however, isn't straightforward. The TourX doesn't come with a traditional full-size spare tire or compact spare (also known as a 'doughnut'). Instead, it comes with a tire inflator kit. The kit is intended to temporarily seal punctures and inflate the affected tire, allowing the driver to reach a service station. However, if an owner decides to opt for a spare tire replacement for additional security during long trips or remote travels, it's important to note that the original tire size of the Buick Regal TourX is 235/50R18. Therefore, a spare tire, whether full-size or compact, should be compatible with this size specification.

Buick Regal TourX models manufactured from 2018 to 2020 have tires with overall diameter of 27.3", allowing the use of a temporary spare tire with a near same diameter as the OEM tire. Tire diameter and wheel diameter clearance have been taken into account for the specific Buick Regal TourX years and trims.

Listed below are compact spare tire sizes that can fit some Buick Regal TourX vehicles based on acceptable tire diameter range of 26.5" to 28.1". Some Regal TourX models may require the use of a traditional full-size tire as a spare. To ensure safe temporary mobility in case of a road emergency, always refer to the vehicle owner's manual for the correct Buick Regal TourX spare tire size designated by vehicle's manufacturer.

Spare Size	Spare Diameter
T145/60R20from $271.36	26.9"
T145/80D18from $257.05	27.1"
T155/70R19from $237.96	27.6"
T155/70R18from $178.60	26.6"
T165/80R17from $166.85	27.4"
T135/90R17from $158.19	26.6"
T145/65R20from $146.43	27.4"
T165/80D17from $124.93	27.4"
T145/85R18from $118.73	27.7"
T155/90D17from $114.99	28"
T155/80D17from $97.90	26.8"
T155/90D16from $92.99	27"
T165/70D18	27.1"
T165/60R20	27.8"
T155/90R17	28"
T155/90R16	27"
T155/80R18	27.8"
T155/80R17	26.8"
T155/80D18	27.8"
T155/70D18	26.6"
T145/90R17	27.3"
T145/90D17	27.3"
T145/80R18	27.1"
T135/90D17	26.6"
T165/70R18	27.1"

Spare Tire for Buick Regal TourX

Discover spare tire solutions for your Buick Regal TourX based on model year. Generally, spare tire size has to be within 3% of the overall diameter of the original equipment tire size. Buick Regal TourX tire size can vary depending on the year and trim. Make sure to check the load index and load capacity of the spare tire to ensure that it is capable to safely support your vehicle's weight.

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.