I believe there's 25, 50, 75, 100, and 180. Last year Carie and I did the 50. I was originally planning to do the 100, but Carie decided to do it also and we wanted to ride together. I think this year we're both going to do the 100. Each rider has an amount they must raise depending on the distance. 50 is $1250 I believe. When you sign up, you promise to raise that much or pay the difference yourself. Last year I raised over $4000, and Carie raised $2000. The site is under construction at the moment as they prepare for 2014 registration. There will be a lot more info up soon.