I will be moving from California to Mesa Arizona within a year. What road cycling groups that average 16 to 18 miles an hour are in the area?
Somewhat dependent on where you will be living in Mesa, but check out:
They are in Scottsdale and have 3 different groups, A, B, and C for different ride cadence. I would ask them for recommendations in Mesa. Scottsdale is a very common riding area- bit less traffic with ample bike lanes on LOTS of roads.