Pontiac GTO Tire Sizes and Rim Specifications by Model Year and Trim

The Pontiac GTO offers a variety of tire sizes and rim dimensions that vary by model year and trim. Understanding the correct tire size markings and rim width × diameter helps maintain optimal handling and safety.\n\nEarly model years often featured smaller rim diameters with narrower widths, while later trims might include wider rims for enhanced performance. Common tire size markings include formats like 225/60R15 or 245/50R16, with rim sizes ranging typically from 15 to 17 inches in diameter.\n\nWhen comparing trims, consider that performance-oriented versions often have wider rims and lower-profile tires to improve grip and responsiveness. Always verify the factory specifications to ensure correct tire pressure and fitment compatibility for your Pontiac GTO.\n\nUsing the proper tire and rim combinations preserves the vehicle's original handling characteristics and prevents wear-related issues. Consult your vehicle's manual or a trusted tire professional for exact measurements and recommendations based on your specific model year and trim.

For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Pontiac GTO.