Infiniti M30 Spare Tire Sizes
The Infiniti M30 has used a 4x114mm (4 x 4.5") bolt pattern for all models from 1990 to 1992 along with tire diameters ranging from 24.7" to 25.2" 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 Infiniti M30 years and options. In this case, 135/80R16 and 145/70R17 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.