Suggestions for 100 miler?

What's your required singletrack quotient? Because I can think of a LOT of dirt centuries but no continuous 100-mile stretches. Some are close! There are stretches of the AZ Trail that run way-long. You could probably also assemble a cloverleaf of singletrack through Flagstaff and accumulate 100 miles.

One dirt century that's been tickling the back of my brain the past few years is a circumnavigation of the Chiricahuas. I believe the combination of roads is like 104 miles or something...but it's all dirt road. I'd probably set up a geared 'cross bike for it, honestly, since there's at least one bit where you'd have to hump up about 2200' to get over a ridge.

p.

Lots of good ideas here.

arizona endurance series

I'm intrigued by your Chiricahuas idea, Paul. I've got a complete plan of a (mostly)dirt road tour that goes from Tucson to Las Cruces, NM (where I grew up) that includes Greaterville Canyon, the Dragoons, ranch roads, and a trip up to Onion Saddle in the Chiricahuas, but haven't executed it yet, mostly because I'm worried about drug activity in the space between Antelope Wells and Santa Teresa.

Skidmark posted up a S. Arizona dirtroad tour a few years back that he did on a fixed CX. EDIT: here's the link... I really want to do this ride.

http://www.handlebarsandwich.com/crazy-88

might be too hot, but the Prescott Loop on the AES site has gotten some pretty stellar feedback.

Check out the White Mountains , its very easy to string together 100 miles of trail .