Paul Mountain Thumbies Bar End Gear Lever

Use Bar-End or Downtube Shifters for Bike Touring - CYCLINGABOUT

Adaptador para el extremo de la barra Shimano o la palanca de cambio de cuadro.

Paul Component Thumbie Shimano Thumb Shifter Adapter - Right - silver

Paul Component Engineering Thumbies Right-Only Shifter Mount Shimano 22.2 : : Sporting Goods

Surly Corner Bar Review

Paul's Thumbies Restoring Vintage Bicycles from the Hand Built Era

Fixie bike suggestion help - Equipment - TrainerRoad

Miss thumb shifters? Converting a drop bar bike to flat bars? These easily transform bar-end (aka barcon or TT) SRAM shifters into thumb-shifters.

SRAM Thumbies

Replacing dual control levers on drop bar with mtb style brake lever and shifter - Bike Forums

Paul Component Thumbie Shimano Thumb Shifter Adapter - Right - silver

Paul Component adds SRAM-compatible Thumbies thumb shifters - Bikerumor

Shift Levers - C&L Cycles

Use Bar-End or Downtube Shifters for Bike Touring - CYCLINGABOUT