This like new Gossamer Pro Crankset was never installed on the trike it came with, but the bottom bracket was. The Gossamer fits many combinations of bikes, riders and riding styles. It is compatible with Shimano 10/11 Speed, Sram 10/11 Speed and FSA 11 Speed. The bottom bracket spec is a Mega EXO BB 8000/6000 BC 1.37"x24t. Comes with 165mm crankarms. Chainrings have a 90mm B.C.D.
