BMW M240i Spare Tire Sizes
The BMW M240i has used a 5x120mm bolt pattern for all models from 2017 to 2021 along with tire diameters ranging from 24.8" to 25.1" 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 M240i years and options. In this case, a 125/70R18 temporary spare tire is the recommendation for all applications.