Well-Known Member
Everything you ever wanted to know about Gearsensor and more! Gearsensor home, list of distributors and technical information.

What is
It's a unique patent pending system, developed and made in Czech Republic. It's based on intelligent shifting sensor fixed on shifting cabel, which is reducing or cutting off motor drive when the rider activates gear shifting. This market-proven device allows smooth shifting for both derailleurs and internal gear hubs. It also provides longer lifetime to whole shifting system.
A must for center-motored e-bikes!


Active Member
The gearsensor doesn't work the best on the BBS0X drives without a special connector into the controller. Without that, it connects to a brake port which means a noticeable delay between power cut and startup during shifts.

AFAIK, lectriccycles still has a monopoly on motors with that gearsensor port.