Cadillac CT6 Spare Tire Sizes

The Cadillac CT6 has used a 5x120mm bolt pattern for all models from 2016 to 2020 along with tire diameters ranging from 27.3" to 27.7" 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 CT6 years and options. In this case, 145/85R18 and 145/60R20 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.