Universal Derailleur Actuator (bottle holder mountable)

Universal Derailleur Actuator for bicycles:
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This super strong servo actuator fits most bottle holder mounts and can therefore be attached to almost every bicycle frame. Many frames have two bottle holder mounts, so it is possible to drive both front and rear derailleur.

I recommend to use the gearmotor with 6 to 10 rpm and 6V supply voltage. The shown motor (very high torque) is self-locking type, therefore there is absolut