SRAM S100 Derailleur Outer Plate Half Mount Description: The SRAM S100 Derailleur Outer Plate Half Mount elevates side impact security when mounting SRAM S100 rear derailleurs onto bikes equipped with SRAM UDH dropouts. Features: Genuine SRAM replacement and service parts Improves security for MTB and eMTB dropouts, preventing damage Integrates with the UDH bolt and half mount specific S100 Eagle rear derailleur mount bolt Specifications: Color: Black Material: Alloy