The pedelec sensor bracket fixes onto the bottom bracket assembly and the magnet ring slips over the bottom bracket pedal shaft (the arrows should point in the direction of the pedal movement).
The black, red, and green wires at the end of the pedelec sensor cable need to connect to the black, red, and yellow unterminated wires on the motor wire harness. These wires are in the unterminated cable near the motor, not the unterminated cable farther from the motor (which is for light/horn).
The pedelec wires can either be soldered directly to the respective motor wires, or you can fit a suitable 3-pin inline connector to allow the rear wheel to be removed more easily to replace inner tubes or tires etc.
Connect the wires: Red to Red, Black to Black and Green to Yellow. Then carefully insulate them from each other and try and make the joint as waterproof as possible. If your pedelec sensor has a yellow wire instead of a green wire, you can simply connect yellow to yellow.
You can configure the pedal assist settings on the smart display.
For help with installation check out this video from the timestamp: https://youtu.be/IL-YpXUkx0M?t=643
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