The Shimano 105 RD-R7100 2 x 12-speed rear derailleur offers pure mechanical shifting pleasure for the purest form of road cycling and is compatible with 11-34 and 11-36 cassettes.
Technologies
Shimano Shadow RD . The mechanism rear derailleur, SHIMANO SHADOW RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.