Brand: Toyo Tires Manufacturer's Part Number: 173240 Part Type: Tires Product Line: Toyo Proxes R1R Tires Summit Racing Part Number: TYT-173240 UPC: 4981910766636 Wheel Diameter: 17 in. Tire Size: 245/40-17 Tire Weather Usage: Summer Tire Construction: Radial Sidewall Style: Blackwall UTQG Tread Wear Rating: 200 Tire Diameter: 24.70 in. Section Width: 9.80 in. Minimum Recommended Wheel Width: 8.00 in. Maximum Recommended Wheel Width: 9.50 in. Directional: Yes Severe Snow Rated (3PMSF): No Speed Rating: W Load Range: SL Load Index: 91 Asymmetrical Tread Pattern: No Traction Rating: AA Temperature Rating: A Tread Depth: 8.2/32 in. DOT-Approved: Yes Run-Flat Technology: No Studdable Winter Tire: No Tube Required: No Max Load Single (lbs.): 1，356 lbs. Quantity: Sold individually. Toyo Proxes R1R Tires Years of grueling on-track experience and advanced engineering shine through in these extreme-performance summer tires. Toyo Proxes R1R tires help you drive hard through the corners and quickly accelerate in the straightaways. Features include an aggressive， arrowhead tread design， extra wide footprint， high-grip compound， and autocross-inspired casing design.