Brand: Toyo Tires Manufacturer's Part Number: 107800 Part Type: Tires Product Line: Toyo Proxes R888R Tires Summit Racing Part Number: TYT-107800 UPC: 4981910527275 Wheel Diameter: 17 in. Tire Size: 245/40-17 Tire Weather Usage: Summer Tire Construction: Radial Sidewall Style: Blackwall UTQG Tread Wear Rating: 100 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: No Severe Snow Rated (3PMSF): No Speed Rating: W Load Range: XL Load Index: 95 Asymmetrical Tread Pattern: Yes Traction Rating: AA Temperature Rating: A Tread Depth: 6.3/32 in. DOT-Approved: Yes Run-Flat Technology: No Studdable Winter Tire: No Tube Required: No Max Load Single (lbs.): 1，521 lbs. Quantity: Sold individually. Toyo Proxes R888R Tires Toyo Proxes R888R DOT competition tires are evolutions of the race-winning Proxes R888， delivering even faster lap times and better dry handling. The credit goes to a new tread design and an improved contact patch that puts more rubber on the track. Racers will also appreciate the predictable handling and how quickly Proxes R888R tires reach optimal operating temperature.Features:* High-grip race compound reaches optimal operating temperature quickly， providing consistant performance and improved grip for excellent cornering* Optimized contact patch improves dry traction in braking， cornering， and acceleration* Large tread blocks on outside tread maximizes lateral grip* Wide center rib improves directional stability and precise steering* Water evacuation channel assists with wet traction