Second is in preparation of biking in the winter. I've come across a few places that talk about how to drive a bike in the winter and they said putting the wires/cables enclosed in a old rubber tube can help save the cables from winter exposure. I'm not sure it will help that much but I moved my running wire from the controller to the front motor to sit behind the front fork and then enclosed it in a old rubber tube. So now all my wires and most of my gear cables and hydraulic lines are encased in rubber. It might help, it might not..
- The down tube should never have anything on it, it's a great place to mount the bike and get off the bike from.