CK0621 Shimano Ultegra R8000 11-Speed 175mm 34/50t Crankset, Bottom Bracket not Included

Features:

Optimized lightweight crank arm design produces excellent power transfer efficiency HOLLOWTECH II Redesigned FC for greater frame compatibility Rider tuned gear performance through various gear combinations Wider gear pitch increases clearance between chain and leading teeth to provide compatibility with frames with O.L.D. 135mm and 410mm chain stay length 50-34T 175mm

Model:	CK0621
Manufacturer:	Shimano