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BigO Tire
Confirm Tire Size
Shopping for tires? Select tire size to proceed.
2011 Porsche Boxster S
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 19" / Rear 19"
Front Tires
235/35R19
Rear Tires
265/35R19
Original Equipment Wheel Diameter:
Front 18" / Rear 18"
Front Tires
235/40R18
Rear Tires
255/40R18
Where can I find my tire size?Where can I find my tire size?