UNO Electronic Rear Derailleur Pulley Cage

This is the original replacement pulley cage for the ROTOR UNO Electronic rear derailleur, available in two lengths: 75mm, designed for Gravel setups with cassettes up to 46 teeth, and 93mm, designed for MTB setups with cassettes up to 52 teeth. Each option includes screws & pulley wheels for a complete, precise installation. The 93mm cage can also be used to convert your UNO Electronic Gravel groupset into a mullet setup.