Shimano FC-TY501 7/8sp Square Taper with Chainguard

FC-TY501 7/8sp Chainset Square Taper 175mm 30/46 Black With Chainguard
Entry level 7/8-speed double chainset offering slick hyperdrive shifting performance for off road enthusiasts
Hyperdrive SG-X chainrings for fast and smooth gear shifts
7/8-speed compatible steel chainrings
For use with 123 mm square taper bottom brackets