Fsa gossamer bb386 n 1011 cranksetgossamer bb386evo gives high level performance at a mid range price cold forged 6061 aluminium crank arms with a monocoque drive side arm and spider make for durable construction the bb386evo spindle can be fitted to a wide range of bikes the gossamer has also been redesigned with a new no pinch bolt design for the non drive side arm for an improved connection to the bottom bracket ramped and pinned 5034t chainrings deliver smooth shifts in everyday gear