RaceFace Atlas Mountain Bike Crankset, Kash Money, 175mm with 68/73mm BB Manufactured from OPTIM-AL, over 20% stronger compared to the commonly used 7050 alloy Manufactured from OPTIM-AL, over 20% stronger compared to the commonly used 7050 alloy Manufactured from OPTIM-AL, over 20% stronger compared to the commonly used 7050 alloy Light weight removable granny ring 5mm of configurable chain line adjustment  insuring chain guide compatibility