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SRAM Thumbies
Miss thumb shifters? Converting a drop bar bike to flat bars? These easily transform bar-end (aka “barcon” or “TT”) SRAM shifters into thumb-shifters. The shifters are not included, but are readily available in 10 and 11-speed versions. These mounts are not compatible with “R2C” (Return To Center) SRAM shifters. Precision machined with pride in Chico, California.
$60.00 – $173.50
Technical Information
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Material6061 Aluminum
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Weight80g (Including all mounting hardware)
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FinishAnodized or Polished
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Anodized ColorBlack, Purple, or Silver
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Clamp Size22.2mm ↓
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. 31.8mm is most commonly used on modern road handlebars near where the stem clamps.
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Compatible ShiftersSRAM 10/11 ↓
Compatible with standard 10/11-speed SRAM shifters, but not "R2C" (Return To Center)
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Additional Information
Product Story
Thumbies bring back the thumb shifting of old, and we think they make shifting more precise and smoother. These feel much better in our opinion than trigger or twist shifters.
Thumbies have a hinged clamp for easy installation that fit all flat bars, MTB risers and city bars with a diameter of 22.2mm (equivalent to 7/8 inches). Diameter is measured at the end of the bar where grips and brake levers attach.
The clamp is raised up to give clearance for hydraulic brake levers and has a shifter mounting boss that fits SRAM 10/11-Speed Bar-End shifters. All necessary mounting hardware is included.
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