This Paul Component Mountain Thumbie will bring back the thumb shifting action of old,
and your bike will shift more precisely
and smoothly than ever before...better than trigger and
fit standard mountain bike handlebars, and will work with most bars that
have a 22.2mm (⅞ inch) diameter. The shifter boss is raised from the bar
to give clearance for bulky two-bolt brake levers, and the hinged clamp
makes installation easy.
The Mountain Thumbies design
have been improved by raising the
shifter boss by 3mm which gives enough clearance to use them with brake levers that use a two bolt clamp.
Installation is easy and straight forward. Shifters not included.
They work with SRAM bar-ends, and they may also work with some down tube