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BigO Tire
Confirm Tire Size
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2002 Porsche Boxster Roadster 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 17" / Rear 17"
Front Tires
205/50ZR17
Rear Tires
255/40ZR17
Original Equipment Wheel Diameter:
Front 18" / Rear 18"
Front Tires
225/40ZR18
Rear Tires
265/35ZR18
Where can I find my tire size?Where can I find my tire size?