Check the listing for details. Wolf Tooth Tanpan 11-Speed Conversion Precision Stainless Steel Hardware. Condition: New. Listed at 44.95 USD. The Tanpan brings the range and security of mountain rear derailleurs to -equipped drop-bar bicycles. This means a greater gearing range for bigger adventures, better chain security for rough terrain, and lighter weight and reduced complexity for the daily commute. In order to deliver these benefits, the Tanpan amplifies road shifter cable pull to allow for seamless communication with mountain derailleurs. The result is ideal for riders looking to convert their road, gravel, cyclocross, or commuter bike to the simplicity and light weight of a single chainring.ONLY Compatible with Tiagra 4700 when using Tanpan 11 and corresponding 11-speed derailleur. Designed to be used with 11-speed Dynasys Rear Derailleurs and 11-Speed Road Shifters. Not Compatible with SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us