Paul Components Thumbies turn bar-end shifters into flat-bar shifters.
- Machined in the USA of 6061 aluminum
- Right-Only
- The 31.8mm Thumbies mount to the stem clamp area of a drop bar
- They have a shifter mounting boss that fits Shimano bar end shifters and most Shimano downtube shifters
- Thumbies have a hinged clamp for an easy installation