Continental sport contact ii city road bike tyrethis super fast looking city slicker turns any bike into a racer helping bike messengers meet those tight deadlines or fitness riders who require a faster tyre than the original knobbly tyres that their bike was supplied with puncture protection and reliability is taken care of thanks to continentals renowned hard wearing tread compound and two safetysystem anti puncture layers beneath the tread an improved 180 tpi threads per inch nylon casing