microSHIFT Bar End Shifter Set 10-Speed Mountain Double/Triple Shimano Compatible BLKmicroSHIFT Bar End Shifter Set 10 Speed Mountain Double Triple Shimano Compatible Black. microSHIFT bar end shifters can work on TT bikes commuter bikes mountain bikes and even work as down tube shifters. These versatile shifters have CNC machined mechanisms that result in crisp shiftings you will love. Expander plug compatible with handlebars with internal diameter of 19 21mm TECH SPECS Double or Triple Both Double or Triple Double Double or Triple