Dual Drive is a single-sided shifting system that is actually fun to use No longer do you need to be a guru in ways of the shifter in order to find a smooth ride You can quickly thumb your way through three easily identifiable riding modes, then click up or down the twist shifter to find your comfort level

• DUALDRIVE II FEATURES:
• For use with 24 or 27 speed
• Shiftable under load or while stationary
• Transmission range: 578% (27 speed), 541% (24 speed)
• Can be used with one handed dualdrive shifter or dualdrive trigger shifters
• Freewheel, disc & i-brake versions available
• Weight: 970g (freewheel version)