R9 整合式煞變把 3×9

R-Series drop bar shifters are designed to make life easier. Upshifts and downshifts are handled by separate, discrete levers and the brake lever is completely fixed, meaning accidental shifts are a thing of the past. External shifter cable routing is easy to replace and avoids kinks in the housing. Add in comfy ergonomics and crisp shifting action, and you’ve got the best value in road shifters.