Cadillac STS Spare Tire Sizes

The Cadillac STS has used a 5x115mm bolt pattern for all models from 2005 to 2011 along with tire diameters ranging from 26.0" to 27.3" 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 STS years and options. In this case, 165/70R17 and 145/60R20 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.