About 175/65R21 Tires

The 175/65R21 tire size is relatively uncommon and is found on select compact and subcompact vehicles, notably certain configurations of the Toyota Prius and similar fuel-efficient sedans that use narrow, high-diameter wheels to reduce rolling resistance. This unusual combination of a narrow width with a large 21-inch rim diameter is specifically engineered to improve aerodynamics and fuel economy. Buyers should verify their vehicle's exact fitment requirements before purchasing, as this size is not widely interchangeable with other vehicles.

At the budget end, Falken and Kumho offer competitively priced options that provide reliable performance for this size. Mid-range shoppers should consider Hankook or Nokian, which deliver a strong balance of longevity, ride quality, and value. For premium performance, Michelin and Bridgestone manufacture high-quality options in this size that excel in fuel efficiency ratings and overall durability.

Treddur is currently tracking 7 listings for 175/65R21 tires. Prices range from $46.11 to $126.22 depending on brand and retailer.

Because this is a niche tire size with limited availability, shoppers should purchase well in advance of seasonal changeovers rather than waiting for last-minute deals. Inventory can be sparse, so monitoring prices in late summer for winter tires and late winter for summer tires is advisable.

Due to its niche fitment and limited production runs, the 175/65R21 size typically commands a price premium compared to more common tire sizes, with average prices running higher than similarly sized conventional tires and showing little seasonal discounting due to constrained supply.