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BigO Tire
Confirm Tire Size
Shopping for tires? Select tire size to proceed.
2025 BMW XM Base
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:
Front 21" / Rear 21"
Front Tires
275/45R21
Rear Tires
315/40R21
Original Equipment Wheel Diameter:
Front 23" / Rear 23"
Front Tires
275/35R23
Rear Tires
315/30R23
Original Equipment Wheel Diameter:
Front 22" / Rear 22"
Front Tires
275/40R22
Rear Tires
315/35R22
Where can I find my tire size?Where can I find my tire size?