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Paul Component Engineering Mountain Thumbies

Paul Component Engineering

Mountain Thumbies

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Paul Component Engineering Mountain Thumbies

Paul's Mountain Thumbies are mounts that let you install down tube or bar end shifters on the center flats of your handlebar, effectively turning them into thumb shifters. And, like all Paul components, they're made of 100% CNC-machined aluminum in his California workshop.

Features and Information

  • View the Thumbies in Silver installed.
  • The Thumbies are compatible with Campagnolo and Shimano bar end, and SRAM TT shifters.
  • Mountain Thumbies fit standard 22.2mm mountain bike handlebars.


by PowerReviews
Option Manufacturer's Part Number Store SKU
Black / Campagnolo 230BLACK
Black / SRAM 240BLACK PAU314798458
Black / Shimano 250BLACK
Silver / Campagnolo 230SILVER
Silver / SRAM 240SILVER
Silver / Shimano 250SILVER PAU63701794R