Go long. Go fast. Superlight and silky smooth the flagship frameset of the new defy range represents the pinnacle of endurance road performance. The frame and fork are both crafted from giant's pro level advanced sl grade composite and the new slr d fuse seatpost adds a small amount of flexing action up to 7mm for road smoothing compliance. Advanced sl composite technology professional grade raw carbon fiber is woven in our composite factory to produce our lightest stiffest and highest quality frames. This is the technology used by giants pro racers in almost every cycling discipline. 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 seatpost the proprietary ldquodrdquo shaped composite seatpost damps vibration resulting in a smooth compliant ride. 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. Powercore a massively oversized bottom bracket chainstay area features a fully integrated 86 millimeter wide bottom bracket design 92 millimeter wide for off road bikes. Asymmetric chainstays provide additional stiffness on the driveside and stability on the non driveside. Colour gloss artic blast iris frame advanced sl grade composite 12x142mm thru axle integrated seatpost disc fork advanced sl grade composite full composite overdrive aero steerer 12x100mm thru axle disc seatpost giant d fuse slr composite 5 15mm offset bottom bracket press fit 41x86.5mm. Not included shifters compatible with shimano di2 sram axs etap new campgnolo super record groupsets. Extras out front computer mount fender mount water bottle cages headset and spacers axlesmax tyre clerance 40mm 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.