Whatever bad reputation this trail has developed, it's actually one of the better loops in the Canon City area. Granted, the nearly 6 mile climb up Stultz trail doesn't let up, is worn in by ATVs and bakes in the sun on hot days. However, the descent on the Tanner trail through East Bear Gulch is a great payoff - a steep, technical, and FAST 3.5 mile drop back to your car. Still want more? When you get back to the car at the East Bear Gulch trailhead, peddle another mile or so up CR 143 to the start of the ~15 mile Lion Canyon Loop.
You will start your ride by heading back down CR 143 to the Stultz trailhead that you passed at about the 9 mile on your drive up CR 143. Climb Stultz trail for a long while (5-6 miles), passing many scenic resting spots on the continuous climb. After a couple hrs or so of uphill, take the Tanner trail when it turns off to the left, and begin the descent down East Bear Gulch. Keep it together for the 3 miles of steep, narrow and rocky trail to pop out back at the car, at the East Bear Gulch trailhead. Link with the Lion Canyon Loop, a short peddle up CR 143, for a monster nearly 25 mile ride.
From Hwy 50 in Canon City, head south on Hwy 115 (9th St) for a little more than a mile. Turn right onto Elm St. and then left shortly thereafter onto Oak Creek Grade Rd (CR Rd 143) and head south out of town for a little over 10 miles to the East Bear Gulch trailhead parking on the left.
http://www.singletracks.com/item.php?c=1&i=2778