Confirm Tire SizeWhere can I find my tire size?
Shopping for tires? Select tire size to proceed.
2021 BMW Z4 sDrive M40i
Your vehicle manufacturer’s recommended tire specs include different front and rear tire sizes (i.e. staggered fitment). Learn about Staggered Fitment
Original Equipment Wheel Diameter: 18"
255/40R18Original Equipment Wheel Diameter:
Front 19" / Rear 19"
Front 19" / Rear 19"
Front Tires
255/35R19
Rear Tires
275/35R19
Original Equipment Wheel Diameter:
Front 18" / Rear 18"
Front 18" / Rear 18"
Front Tires
255/40R18
Rear Tires
275/40R18