Firebolt Shifter - Seamless Control. Instant Response With ergonomics based on Shimano’s Rapidfire beginnings, the Di2 Firebolt shifter offers unrivaled, intuitive shifting thanks to its shorter lever throw and decreased shift effort.
Shimano’s Firebolt customizable shift button placement is determined entirely by human ergonomics. This means that the shifters are now exactly where your thumbs naturally rest. Shifts can happen more quickly, allowing you to adjust to the terrain and your desired effort like never before, taking Shimano’s Rider Tuned concept to an entirely new level.
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