SRAM X.4 8-SPEED TRIGGER SHIFTERPRECISE AND RELIABLETrigger shifters are great for flat bar road bikes and mountain bikes. The SRAM X.4 8-Speed Trigger Shifter provides precise and reliable shifting and is great for repairs or upgrades. The shifters include cables, but the housing is sold separately. These are designed specifically for SRAM 1:1 mountain bike derailleurs.FeaturesTrigger shifters that provide precise and reliable shiftingIncludes cables but not housingDesigned for SRAM 1:1 mountain derailleurs | SRAM X.4 8-Speed Trigger Shifter Black, Set