50km BIKE COURSE:
An awesome combination of fast pavement and rolling gravel roads. You’ll roll through Crane Hollow and other classic Boulder County mixed terrain. A road bike (with wide tires) or a cyclocross/gravel bike will be the best choice for this course. Sign up for the Run/Bike Combo and take on the 5.4 mile run before you ride the 50km course!
100km BIKE COURSE:
We’re switching up the 100km course this year adding beautiful views of the Twin Peaks and Carter Lake. You will ride north for a new gravel section and then a roll through a loop by Carter Lake. This means less overall elevation gain and no off-the-bike section. A cyclocross bike or road bike will be your best bet for this course.