I am SLIGHTLY tempted by this adventure:
The White Rim Trail is Utah’s ultimate multi-day party trail. The trail is a 103-mile loop on jeep road through Canyonlands National Park. Most riders spend 4 days (3 nights at campgrounds) to ride this trail. (Three days = Buff. Two days = Monster. One day = Lunatic.)
From above on the Island in the Sky I could look down on the White Rim road.

Technically, this trail is easy. But the length (and a few stiff climbs) means you need to be in good condition to do the whole thing. You’ll need a support vehicle for food, water, camping gear, and bike parts. Campgrounds (with bathrooms) are spaced every few miles.
You can ride the trail either direction. Most bikers ride clockwise, from the Schafer Trail around to the Green River, which tends to be easier. There are four big hills with over 1000 feet elevation gain, but one is downhill as you drop into the canyon the first day. A three-day trip gives you one major climb each day.
Here’s the start, dropping in from Canyonlands National Park on the Schafer Trail:

Perhaps … on another trip.
This time I am off next to the Needles section of Canyonlands.