Ok, so I'm gonna ride my IXFS from Southampton to Cambridge on a Friday, enter a Dragon Boat race with my company on the Saturday, and ride back on the Sunday. It's 136 miles each way. I'm going to do this in aid of Cancer Research (or Marie Curie, or something), in memory of a friend who passed away a couple of weeks ago from liver cancer, and to promote the awesomeness of Downtubes. This will be around September. I'm starting to think about what I might do with the bike. I want to have it as stock as possible, but at minimum, it will get
A) A Brooks B17 special (I'll be buying this asap). The question is, on a black bike, should it be black, to match, or honey, for contrast.
B) New tyres. But what? The 240 lb man in me says Marathons, but the guy who doesn't want extra rolling resistance over all that distance says Comets, or Stelvios. Would those tyres cope?
I have a seatpost rack, and will be carrying my things for the weekend in my panniers. I also have a bar bag for food. What else should I consider?