Control device for the preselection and indexation of back gear
Control device which provides a plurality of pre-established and
Control means for shifting gears on dual shift bicycles
Control means for shifting gears on dual shift bicycles
Control means for shifting gears on dual shift bicycles
Control mechanism for toroidal-type transmissions
Control system for adjusting bicycle gear ratios
Control system for variation of the sheave ratio in a continuous
Control unit for chain shifter
Crank-gear derailleur
CVT having low holding position and overdrive holding position
Cycle gear-changer