FSA Gossamer Pro Adv. 2x Crankset 48/32T 165mm 120/90BCD 386EVO N1 1. The FSA Gossamer Pro 2x Crankset is a dependable choice for performance-focused road cyclists. Featuring forged aluminum arms and a two-ring setup it balances stiffness weight and durability for everyday training and racing. Its BB386EVO compatibility ensures broad frame integration while the clean design and proven construction make it a staple in high-mileage builds.