The Aurora R7 105 Di2 is a high-performance carbon road bike featuring the Shimano 105 Di2 groupset. Experience unparalleled speed and precision shifting with this premium bike, ideal for racing or dedicated cyclists seeking a competitive advantage. Weight: About 8.9kg(19.62lb) Carbon fiber frame,fork,handlebar,seatpost,wheels Aerodynamic frame Full integrated cable routing design SHIMANO 105 Di2 electronic gear shifting system Hydraulic disc brake  UCI certification