This agile and smooth riding flat bar bike offers an exhilarating blend of road bike speed and versatility engineered with giants comax composite and the proprietary d fuse seatpost the frameset delivers a lively and comfortable ride quality fast rolling 700c wheels give you confidence and control whether youre zipping through the city or out on a training ride frame comax composite technology fork advanced grade composite alloy overdrive steerer drivetrain shimano tiagra 20 sp