Diamondback Bicycles 2016 Century Complete Road Bike with Disc Brakes 7005 aluminum alloy frame with Enhanced Performance Geometry--less fatigue on long rides DBR Podium Air formed Disc Alloy Fork with 1.5" tapered alloy steerer Tektro Mira Mechanical Disc Brakes, 160/140mm Rotors Shimano/FSA 2x9-speed drivetrain offers great performance and value Diamondback Equation double wall wheels provide enough strength to last