Product description
FEATURES
Faster, more seamless shifting under maximum pedal load.
Revised 12-speed downshifting for premium efficiency and optimal acceleration in all situations
34Z option expands options for pro use
Compatible with new 12-speed and 11-speed road FREEHUB freewheel body
11-12-13-14-15-16-17-19-21-24-27-30
11-12-13-14-15-17-19-21-24-27-30-34
Faster, more seamless shifting under maximum pedal load.
Revised 12-speed downshifting for premium efficiency and optimal acceleration in all situations
34Z option expands options for pro use
Compatible with new 12-speed and 11-speed road FREEHUB freewheel body
11-12-13-14-15-16-17-19-21-24-27-30
11-12-13-14-15-17-19-21-24-27-30-34
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