Great! Good Luck already!
You can have a bike support after 22km. If you dont have one, ask over Facebook or on the official guestbook if somebody likes to support you (works most of the time). Like this, the question with the food and drink is already solved.
BUT: There are food and drink stands all over the race track (every 6-10 km). Here is the plan with all stands and massage points ( http://www.100km.ch/downloads/2012/streckenplan.pdf )
And here the 2011 plan about what you get on witch stand (only in german but it should work) http://www.sportfood4you.ch/wp-content/uploads/2011/06/Verpflegungsplan-100-km-Biel-NEU-2011.pdf
If you have further questions, do not hesitate to contact me
Why not doing one of the oldest ultra marathon in the world. Alone, in pairs or in a 5 Team. One time you have to run the Biel 100km.
I did it already twice and cant wait for my third time this june.
More than welcome to help, if you have questions about the run
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