Cadillac SRX Spare Tire Sizes

The Cadillac SRX has used 6x115mm and 6x120mm bolt pattern variations from 2004 to 2016 along with tire diameters ranging from 29.0" to 30.2" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicles with larger brake calipers and anti-lock brakes or traction control systems. Tire diameter as well as wheel diameter clearance have been taken into account for the specific Cadillac SRX years and options. In this case, 155/90R18, 175/80R19 and 175/70R20 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.