The Fuji Sl was born out of the quest to create one of the lightest bikes in the world. A machine weight weenies dream of. By building off an already grand tour winning design and making it that much better. When every gram matters, ingenuity follows: Through high Compaction molding, reduction of bonded joints, flattened sections of high-tensile strength carbon throughout the frame, and cleverly engineered injection-molded cable stops, the Sl frameset shaves off 237 grams from the 2015 Altamira. Not only is the Fuji Sl significantly lighter, it has a significantly stiffer head tube, bottom bracket and fork.