Thumbies remain popular for their reliability and simplicity. Really, they go on everything. Microshift are one of the last really good manufacturers of simple lever shifters, and their fantastic and well-known levers are paired here with a thumbie mount to go on almost any non-road handlebar ever made. CNC aluminum construction Adjustable torque bolt to fine tune shifter drag Can be switched from indexed to friction Left shifter is always friction Compatible with all brands' transmissions except Microshift Advent and internal-gear shifting 10-speed is compatible with 10-speed Shimano road (except Tiagra 4700) 11-speed SRAM is MTB-compatible only, index/friction, and right lever only.
