Originally Posted by TransitBiker

Bope, seems fine!

To replace wires, simply untie the knots (most have knots to keep them from being pulled in accidentally) and tie a string to one end, pull it through till string is out the other end, then untie from old wires, then tie string onto new wire & pull through. To tie securely, simply notch the casing of the wire on both sides, otherwise it's lileky the string will come off. Some frames with internal wiring have guides that point the wire to the exit hole near the bottom bracket or seat tube.

You should check for and remove any corrosion every month or 2, to ensure a solid complete connection & avoid pushing current through an improperly connected wire. The hub dyno is always on when rotating, so keep that in mind.

- Andy