... I suppose I'm more concerned about preparing for the ways an event like this differs from an audax.
Yup, I went through the same thoughts in 2008. There are two main things:
- riding a lot on the flat. You may go for an optimised position (i.e. tribars and so forth), and you'll need to know you can ride thus for many hours. I tried mine out on a 600!
- other miscellaneous stuffs:
Where is food/drink available, where do I put my number, how do I enter, can I use my MP3 player ? ...etc ... etc ...
Both areas were discussed on the Mersey threads 08/09, so read those first.
[I really do think most Audaxers were better prepared for the 24H than those coming from a "Time Trial background" ... </sweeping generalisation> ]