Joseph Magee, the product developer of the VECTr, is looking for feedback on his design as he conducts market research. The name is short for the Variably Expanding Chain Transmission, and is a new way to change your front drive ratio. They have built a working prototype along their journey towards production.
The system is said to be better than typical current designs by reducing the wear and friction of a front derailleur, reducing wear on the chain from drastic chain angles (cross-chaining), can change gears quickly, and can be adjusted anywhere in between a 22t and 44t equivelant.
Watch the video, and take their survey. Tell us what you think of VECTr