Shimano Tourney RD-TX800 8-Speed Rear Derailleur SilverThe Shimano TX800 Rear Derailleur is the latest in mountain bike derailleurs. Featuring the double servo-pantograph technology that increases durability against weather and oxydation. The maximum teeth for this model is 43. Equipped for an 8-speed setup, this will help you get to the top of the mountain, and back down with confidence.689228601451
