SHIMANO R9100 Series Rear Derailleur 11S Compatible with CS Low Range Maximum 14T Gear 33600 Series Color SS DURA-ACE RD-R9100 25-30T (Top Compatible)

Pulley cage / Installation / Specifications: SS / Direct mount / OT-RS900 included Rear hub compatible speeds / compatible chain / total capacity: 11 speeds / HG-X11 / 35T Compatible top gear (minimum/maximum): 11/14T Compatible low gear (minimum/maximum): 25/30T Maximum front tooth difference: 16T