Crank it up! This is a used Shimano STX FC-MC30 mountain bike crankset from the early 90s. It's made in Japan for a square taper bottom bracket (not included) and the triple chainrings are 42T/34T/24T. The crank arm threads and pedal threads are all in good condition, pedals thread in with ease. The smallest chainring is in great shape and has very little wear. The middle and largest chainrings are in fair condition but do have a couple of teeth worn slightly flat (see photos). The finish on both crank arms also features a bit of wear with light scuffing present. Overall this 90s mountain bike crankset is ready to move you and your mountain/touring build! Message us with any questions or to request additional photos. Thanks! -Pedal Past Cyclery