Here some registration info
When does registration open?
Registration begins on Nov. 15, 2005.
When is the registration deadline?
The registration postmark deadline is April 1, 2006. Your application, payment and waiver must be submitted prior to or on the deadline to be eligible for the lottery.
Is there a limit on registrations?
RAGBRAI is limited to 8,500 week-long riders and 1,500 daily riders. Applications can exceed the number of riders allowed, so a random computer lottery takes place after all of the applications are entered in the computer. Lottery results are available online on May 1, 2006.