MADB, I know this is a really old thread but I wonder if you could help me out please. One of these Avantis came into our community workshop and we're refurbishing it, but I'm struggling with the correct cable routing, with regards to the rear brake. Currently there's a two-channel plastic cable guide under the BB shell, presumably for the gear cables. So, where's the central cable for the rear brake meant to go? Was it originally a 3-channel that's been replaced before the bike came to us or am I missing something?