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E-Bike Motors Ditch Derailleurs for Seamless Shifting
30 Jun
Summary
- New e-bike motors combine automatic gearing with electric power.
- They eliminate fragile derailleurs and heavy cassettes for less maintenance.
- Infinite gear ratios adjust seamlessly for optimal pedaling cadence.
Two companies, Avinox and Gobao, have introduced groundbreaking Motor Gearbox Units (MGUs) that integrate electric motors with automatic gearing systems, aiming to eliminate the need for traditional derailleurs and cassettes. These advanced MGUs feature electronic continuously variable transmissions (eCVTs) that provide infinite, seamless gear ratios, adjusting in real-time to maintain a preferred pedaling cadence regardless of terrain. This innovation promises a more durable and low-maintenance drivetrain, improved handling due to mass centralization, and quicker shifting under load.
Avinox's MG Concept, developed with partners like Canyon and Commencal, and Gobao's X-series MGUs were showcased at Eurobike, impressing with their performance and quiet operation, reportedly surpassing existing Pinion units. While initially targeting high-end electric mountain bikes, both companies plan to begin mass production in 2027. Gobao's X1 and X1P models are slated for February 2027, with Avinox confirming a 2027 launch.
If these new MGUs prove reliable and affordable, they are expected to transition to commuter, cargo, and family e-bikes within a few years. This technological leap could simplify e-bike drivetrains, offering riders a more connected and less mechanically demanding experience, whether navigating challenging trails or urban environments.
