CENTOS 11 RD-R58S (11 SP) SHORT CAGE - Rear derailleur. - Road bikes. - Model No.: RD-R58S. - Cassette Compatibility: 11 Speed. - Cage Type: Short Cage. - Front Chain ring: Double. - Max. Sprocket: 25-32T. - Min. Sprocket: 11T. - Total Capacity: 35T. - Guide Pulley: Engineering Composite with Steel Bushing. - Tension Pulley: Engineering Composite with Steel Bushing. - Bracket Body: Anodized Cold Forged Aluminum. - Bracket Pivot Seal: Yes. - Plate Body: Resin / Black Painted. - Plate Pivot Seal: Yes. - Outer Link: Anodized Aluminum. - Inner Link: Black Painted Aluminum. - Link Pin Bushing: Stainless Steel. - Outer Plate: Anodized Aluminum. - Inner Plate: Anodized Aluminum. - Weight: 194g. - Color: Stone Black. - Compatibility: Shimano Dura-Ace R9100, 9000; Ultegra R8000, 6800; 105 5800 compatible.