Thumbie Shifter Mounts
Our Thumbies are the original upright handlebar mount. They easily transform bar end (aka barcon) shifters into thumb shifters. These shifters are not included, but are readily available in 8, 9 and 10-speed versions, and many have an option for friction-shifting.
Thumbies bring back the thumb shifting of old, and we think it makes shifting more precise and smoother than ever before. These feel much better in our opinion than trigger or twist shifters.
Thumbies have a hinged clamp for an easy installation. Three sizes are available to fit handlebars with a diameter of 22.2mm, 26.0mm or 31.8mm. On road bike bars this is the thicker section of the bar where the stem clamps on. On city and mountain bike bars the grip section is usually 22.2mm (7/8") in diameter.
The clamps of the 26.0 and 31.8mm versions are designed to work next to inline brake levers like our Cross Lever, while the 22.2 clamp is raised up to give clearance for hydraulic brake levers.
Three different kinds of Thumbies are available, for use with Shimano, SRAM or Campagnolo shifters. The Shimano version has a shifter mounting boss that fits Shimano bar end shifter and some downtube shifter. The SRAM version has a mounting boss that is compatible with SRAM TT bar end shifters. The Campagnolo version fits 10-speed Campagnolo bar end shifters and is only available with a 22.2mm clamp. It is not compatible with 11-speed Campagnolo shifters.
When paired with Silver Shifter Adapters, Shimano style Thumbies work with the excellent ratcheting Silver Shifters from Rivendell. These shifters work just like the old Suntour Power Ratchet shifters but better.
Thumbies are available in left and right pairs for front and rear shifters, or as single front or rear shifter mounts. A single right Thumbie for a rear shifter works great on a bike with a simple 1x10 drivetrain.