microSHIFT BS-A12 Bar End Road Shifter Set - 2x 12-Speed Shimano 12-Speed Road Compatible BLKmicroSHIFT BS A12 Bar End Road Shifter Set 2x 12 Speed Shimano 12 Speed Road Compatible Black. microSHIFT bar end shifters are the simplest most reliable way to shift on a drop bar bike. With adjustable shifting tension and few moving parts these shifters deliver unprecedented reliability adjustability and flexibility in case of mechanical issues. Perfect for touring every corner of planet Earth or riding around with your friends. Or both! Expander