Not ready for carbon? This chainset is developed for lovers of alloy, & with an impressive history of wins on the brutal cobbles of the Paris-Roubaix, it needs no further explanation. Yet the details can’t be ignored. & not just because of its smoothly integrated design. Its cold-forged aluminium arms are heavily scalloped for the maximum strength to weight ratio, while the versatile Mega Exo spindle is forged from an even stronger alloy. The chainrings are CNC machined from still-tougher 7075 aluminium & also ramped & pinned for the most rapid, precise shifting. Finally, the chainring bolts are chromoly steel (Cr Mo) for exceptional strength. The Gossamer chainset is an impressively lightweight 784g. Boosting stiffness further is FSA's ABS system – Asymmetric Bolt Spacing. A fifth chainring bolt hidden behind the drive-side crank arm delivers extra strength just where it’s needed to resist power strokes & keep shifting ultra-crisp.