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Shop | Components | Drivetrain | Shifting | SHIMANO Thumbies

Product Videos

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SHIMANO Thumbies

Do you miss thumb shifters? Converting a drop bar bike to flat bars? These easily transform bar-end (aka barcon or TT) shifters into thumb shifters. The shifters are not included, but are readily available in 8 through 11-speed versions, and many have an option for friction-shifting. Heck, these will work on any indexed Shimano bar-end shifter going all the way back to 6 speed!

$60.00 – $109.50

Clear

Technical Information

  • Material
    6061 Aluminum
  • Weight
    60g
  • Finish
    Anodized or Polished
  • Anodized Color
    Black or Silver
  • Clamp Size
    22.2mm and 31.8mm ↓

    22.2mm is equivalent to 7/8 inches, and is the diameter of most mountain bike handlebars. Many flat bars, risers and city bars have this diameter. It is measured at the end of the bar where grips and brake levers attach.

    31.8
    31.8mm is the clamp diameter of most handle bars and this size is designed for that section of a drop bar. The shifters are mounted on either side of the stem and are very easy and convenient to operate.

  • Compatible Shifters
    Shimano ↓

    Shimano bar end shifters work well with our Shimano style Thumbies. Many of their indexed downtube shifters will work as well, so long as they mount to a flat, not curved, shifter boss.

  • Additional Information
    Download

Product Story

Thumbies bring back the thumb shifting of old, and we think it makes shifting more precise and smoother. These feel much better in our opinion than trigger or twist shifters.

Thumbies have a hinged clamp for an easy installation and fit handlebars with a diameter of 22.2mm or 31.8mm. The 22.2 models fit mountain bike handlebars and the 31.8 mount to the stem clamp area of a drop bar. The clamp is raised up to give clearance for hydraulic brake levers.

They have a shifter mounting boss that fits Shimano bar end shifters and most Shimano downtube shifters, so long as they mount to a flat, not curved, shifter boss.

 

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When we saw the Sierra Buttes Trail Stewardship an When we saw the Sierra Buttes Trail Stewardship announcement that all events for 2021 were cancelled due to Covid, we were crushed. Anybody who’s been to the Downieville Classic, Mountains to Meadows, or Lost and Found knows we 
LOVE supporting these events with our aid stations, and partying with some of the best bike weirdos in the world, in one of the most beautiful areas in the world.
 SBTS rely heavily on these events to help raise funds and awareness for all the amazing trails they build in the Lost Sierra, involving, employing, and assisting the local small communities in the process. It’s truly inspiring to behold the hard and meaningful work they put in, and a cause we will trumpet until we’re out of breath. 
 What can we do to help? Well, we’ve decided to offer up one of our few remaining Limited Edition 30th Anniversary Box Sets as a prize to one lucky person, chosen at random, who donates to SBTS by March 14th. Consider donating the amount you would normally spend for entry fees and this will help keep the trails and community in good shape for 2022 when we’re all back out there shredding and partying together!
How to enter:
1. Head over to the Sierra Buttes Trail Stewardship website and donate any amount you can afford. 
2. Forward the confirmation email you receive from SBTS to travis@paulcomp.com
That’s it! Paul will choose a winner at random after March 14th in some bizarre way, so stay tuned!
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Sorry, we had too. Sorry, we had too.
Lindsey’s V1 Squidcross in single speed configur Lindsey’s V1 Squidcross in single speed configuration, just in time for wet winter riding. 📷: @belowtreeline #noboringbikes
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