FrontSL-TX50 front shifters pair for 6- and 7-speed SIS indexing with an optical gear display for quick gear position verification. Key features - 6/7-speed indexed SIS shifting with an optical display to confirm current gear at a glance - Two operating modes: 3F Friction Front and 3I Index Front (SIS) FrontSL-TX50 - Sold as a pair for easy installation on compatible drivetrains Why it matters - Provides smooth and reliable front shifting with visible gear position, reducing missed shifts - Flexible front shifting options (friction or indexed) to suit riding conditions and preferences - Simple, intuitive verification of gear selection helps riders adjust gears confidently What it fits and how it helps - Compatible with 6- and 7-speed drivetrains using SIS front shifting - The optical display makes it easier to identify and set the correct gear, especially on rough terrain or in urban riding Use scenarios - Replacing worn or worn-out front shifters on a 6/7-speed bike to restore precise gear control - Upgrading a city or hybrid bike to add a clear gear position display and switchable front shifting modes - Maintenance or customization projects requiring reliable front shifting with visible gear verification Notes - 3F denotes Friction Front; 3I denotes Index Front SIS FrontSL-TX50 - Comes as a pair, ready for installation on compatible frames and components