2009’s Singlespeed Arizona course maps are now available in the usual place:

http://topofusion.com/race.php

(including GPS data ready to upload, printable maps and all that good stuff)

48 miles of one gear suffering, with the addition of the High Chiva loop this year…

Check out this combo of TopoFusion’s playback feature with some helmet cam footage, courtesy of Mike Curiak of Big Wheels.

Though only a GPS single track is being played back, the video was done with TopoFusion’s Multi track playback function, so that the “on screen” stats of speed and grade can be displayed as the simulation proceeds.

Keep in mind that the GPS unit is on the rider in front of the camera, not the one with the helmet cam, so the GPS track tends to go around the corners a bit before the camera gets there.