.Automatic shift, no manual operation, simple and comfortable riding.

.Three-speed automatic shift, well match the e-bikes with MID-motors, light starting at low speed and low cadence at high speed, more comfortable riding.

.the transmission Max torque is up to 100Nm, which is twice of Shimano, can meet the stronger torque requirements of MID-motors

.Use large modulus gears that far exceed Shimano, higher gear strength and durability.

.the start gear adopts a self-centering one-way clutch,can cut into the power at any angle, no empty pedaling.

.Internal shift, no need shift cable. Simple layout, maintenance-free.