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  • Product Details
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Patented central drive motor w/combined one axle and dual-direction ratchet.

Patented balancing torque sensor system integrated in B.B.

High torque in low speed, less battery power required.

Keep your best frame design and geometry.

Easy assembly and maintenance.

Multi front chain-rings allowed.

Flexible for custom designed battery and display.

High stability and reliability with bike frame.


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