The Bellota Trail is close to town and offers extremely technical singletrack that can be short or long depending on your time and nerve. As long as you pick your time of day right, it's ridable year around. Weather and time of year can change trail conditions unexpectedly. The trail may be moist with great traction or dry and loose.
This trail is steep and technical with switchbacks and a few sections you'll probably walk (or crawl) up. The ride back can verge on dangerous if the trail's loose and the hillside is in shadow. You can ride up to the saddle and back or ride down to West Spring. Either way, this is a tough trail. The east drop to West Spring is highly recommended for anyone who likes a challenge. It's difficult but ridable.
How to get there
If you don't have a Forest Service pass, pick one up at the Mount Lemmon Highway fee station above the Molino Canyon overlook or the self-service station at Molino Basin. Some federal lands passes are also valid, including the America the Beautiful pass. Check a fee station for the current pass requirements.
Take the Mount Lemmon Highway to Molino Basin (mile 5.6) and park.
Start early to avoid traffic on the trail. This is a popular trail with weekend hikers and resort groups.
Watch out for hikers and yield the trail, smile, and wave. In most cases they will encourage you to pass, possibly thinking that anyone crazy enough to try and ride this trail needs all the help they can get.
Trail maintenance can be dangerous if you're not paying attention. This trail has rubber tire sections across the trail to divert water and reduce trail erosion. These are a pain riding uphill and can throw you on the descents.
Molino Canyon Vista start. Park and start from Molino Canyon Vista point. This will not require a Catalina Mountains pass and you get an extra 15 minutes of warm-up riding up the highway.