Advanced composite technology giants high performance grade raw carbon material is used to produce this custom frame material in our own composite factory with a high stiffness to weight ratio. The front triangle of these framesets is assembled and molded as one continuous piece in a proprietary manufacturing process called modified monocoque construction. Compact road design introduced by giant with the professional team once in the 1990s compact road revolutionized the look and feel of high performance road bikes forever. A downward sloping toptube from the headtube to the seattube creates smaller front and rear triangles for a lighter stiffer bike. It also makes it easier for riders of all sizes to have a perfect fit. D fuse technology the d fuse seatpost and handlebar were designed to function as a system absorbing road shocks and vibrations so you can ride farther faster. Overdrive aero found inside the head tube of the defy propel and tcr ranges the d shaped fork steerer tube and corresponding spacers provide an extremely aerodynamic easier to service system of internally routed brake and derailleur cables. Colour dark chameleon frame advanced grade composite 12x142mm thru axle disc fork advanced sl grade composite full composite overdrive aero steerer 12x100mm thru axle disc seatpost giant d fuse slr composite 5 15mm offset extras computer mount fender mount water bottle cages tubeless prepared 40mm max tire size weight the most accurate way to determine any bikes weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight but in reality weight can vary based on size finish hardware and accessories. All our bikes are designed for best in class weight and ride quality.as with any product specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals. Every effort has been made to ensure accuracy throughout this website. However giant reserves the right to change bike specifications features prices and colours without prior notice.