3rd Annual Ride for Ryan
The 3rd Annual Ride for Ryan takes place April 21 through April 24, 2006. It starts in Southern California, and heads out to Arizona, wher...

https://www.bikernewsonline.com/2006/03/3rd-annual-ride-for-ryan.htm
You don't have to start out in California, however. Riders in Arizona, Utah, Nevada, New Mexico, can hook up with the group in Flagstaff or Mesa. Check the ride itinerary.
I went on this ride last year, and wrote up an article about it. This ride is actually a ride, that is you don't realize you're participating in an event. There are no bike shows, concerts, or vendors. It's all riding, and some really great riding too.
This year's ride takes you through places like The Grand Canyon, Payson, Flagstaff, Globe, Roosevelt Lake, Sedona, Jerome, Prescott, and others. The ride from Jerome to Prescott offers some spectacular scenery and lots of twisties.
The ride is in honor of Ryan, a kid who was killed by a drunk driver. All proceeds of the ride are donated to Mothers Against Drunk Driving.