Gossamer pro 386evo compact chainset 11 speed the gossamer is a high end crankset for lovers of alloy and with an impressive history of wins on the brutal cobbles of the paris roubaix it needs no further explanationyet the details cant be ignored and not just because of its new smoothly integrated design the cold forged aluminum arms are heavily scalloped for the maximum strength to weight ratio while the versatile bb368 spindle is forged from an even stronger alloy the 30mm spindle is