All-new T-Type cable actuation ratio to provide the most precise and crisp shifts every timeUtilizing the same Full Mount design as its electronic siblings, Eagle 90 is the strongest mechanical derailleur Sram has ever producedDerailleur body features replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assemblyThe most rebuildable derailleur in the Eagle Transmission ecosystemEagle 9012sp52T42LongBLKUPC/EAN/GTIN: 710845905094