Originally Posted by Lanterne Rogue

Going to the Grand Canyon to ride a bike would be like going to Paris to eat Ramen. You could, but why bother?

The Grand Canyon is for hiking and backpacking!

Hike down South Kaibab to spend a night or two at Phantom Ranch, then hike back up the canyon rim via Bright Angel. Or, if you're in good cycling shape, hike rim-to-rim-to-rim (south rim to north rim to south rim) as a day hike.