The Continental ContiRaceAttack 2 Street Tires are hypersport radial tires that are designed for use as race or road tires. Features BlackChili compound and minimal negative tread profile with no grooves on the shoulder, delivering maximum grip on track or street surfaces. Tested with low air pressure for race track use; also suitable with tire warmers. Maximum predictability from special carcass construction and tread compound. 200/55-17, Rear, Radial, (78W)