Got my number late last week. (And Little legs number for my 5yr old, who is very excited!)
I did the practice bike session last week, and it is a proper off road route, about 3 serious up hill bits, with 2 rapid descents, that are very "hairy". I think suspension would be an advantage, as my old "halfords special" was just about holding itself together at the end. It is now in for service in preparation for the race.
Agree with Kev2, I will not be taking it too seriously, just enjoy it and have fun!
TW