Shimano Altus SL-M315-8R Right Rapidfire Plus Shifter Light Shifting Operation Replacing an old, worn-out shifter or upgrading to something better? The Shimano Altus SL-M315-8R Right Rapidfire Plus Shifter offers light shifting operation, wide compatibility options, and is suitable for internal cable routing. The numbered gear display is positioned below the handlebar and indicates gear position at a glance. Shimano's Opti Slick cables feature a minimal and uniform electrically coated layer that improves cable routing efficiency and provides excellent corrosion resistance. This shifter features a 2Way-Release, meaning shifts can be released by the pull of the index finger or the push of the thumb Features Numbered gear display is positioned below the handlebar and indicates gear position at a glance Opti Slick cable features a minimal and uniform electrically coated layer that improves cable routing efficiency and provides excellent corrosion resistance Rapid Fire Plus technology is suited to quick shifting, giving riders the ability to downshift three gears in one stroke2Way-Release means shifts can be released by the pull of the index finger or the push of the thumb | Shimano | Altus Sl-M315-8R Right Rapidfire Plus Shifter 8-Speed Right