Buick Riviera Spare Tire Sizes

The Buick Riviera has used 5x115mm and 5x4.75" bolt pattern variations from 1979 to 1999 along with tire diameters ranging from 25.2" to 27.4" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicle applications. Tire diameter as well as wheel diameter clearance have been taken into account for the specific Buick Riviera years and options. In this case, 125/80R17, 145/60R20 and 165/70R17 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.