Shimano Tourney RD-TX800 7/8sp Rear Derailleur Tx Silver

The RD-TX800 rear derailleur for 7/8-speed features Shimano's double servo-pantograph technology that improves adjustability and resists weather and contamination. The derailleur keeps close to the cassette sprockets, resulting in smooth and effortless gear changing. The capacity of the derailleur is 43 teeth.