Colnago Strada SL. Includes 2 Ultegra drive trains. Currently on the bike is an 11-36. Off the bike an 11-26. Both include rear cluster chain and derailleur. Continental Ultra Sport 23 tires in OK condition. Aluminum hydro formed frame with what is believed to be carbon front fork. Balance of equipment Colnago branded from the factory. All in excellent condition. Compares to $2200 new with one drive train plus PA taxes. Fun quick bike.