BMW M440i Spare Tire Sizes

The BMW M440i has used a 5x112mm bolt pattern for all models from 2021 to 2023 along with tire diameters ranging from 26.0" to 27.0" 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 BMW M440i years and options. In this case, 145/60R20 and 145/70R18 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters.