Trek Super Commuter+ 8 - Routing of the Rear Brake and Shifter Cables; Routing of Electrical Wiring to the Front of the Bicycle; Routing of Electrical Wiring to the Rear of the Bicycle

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3.10.2 Routing of the rear brake and shifter cables
All cables to the back of the bicycle run through the frame. On each side of the down tube, the brake, shifter and
electrical cables enter the frame via an opening in the frame. From there, the cables run via the battery bay to the
back of the frame.
In the battery bay, the cables are secured to both sides of the battery rail spacers with help of tie-wraps.
The brake cable is led through the left hand chain stay to the rear brake caliper.
The shifter cable(s) run along the drive unit and chain stay to the derailleur or IGH. These cables are firmly secured
to the drive unit and chain stay with specially designed clips.
There are two types of clips available; one to secure the single cable of a derailleur drive system, the other to secure
the twin cables of the IGH.
3.10.3 Routing of electrical wiring to the front of the bicycle
The electric wiring to the front of the bicycle consists of wiring to power the front light and to the brake switches
(if applicable, depending on configuration). The wires enter the frame via an opening in the frame and run via the
battery bay to the drive unit, along the cables of rear brake and shifter.
All cables running through the battery bay are secured to the battery rail spacers with tie-wraps, on both sides. The
electrical connections at the drive unit are protected by a specially designed cover that fits between drive unit and
frame.
3.10.4 Routing of electrical wiring to the rear of the bicycle
The electric wiring to the rear of the bicycle consists of wiring to the rear light and, if applicable, the brake light and
license plate lighting. Also the cable from the speed sensor is part of the rear wiring.
The wire for the lighting is led through the rear fender. The fender has a built-in channel to hide and protect the
wiring. Four clips secure the wire in the channel (ensure to fit the flat side of the clip pointing to the wiring cable).
At the front end, the wiring enters the motor cover, and is routed to the electrical connection at the drive unit.
The speed sensor cable runs through the non-drive side stay, via an opening in the stay, to the speed sensor. The
opening is covered with a specially designed frame plug. The connector of the speed sensor is connected to the
drive unit.