I'm not really positive but! A road bike ought to be chosen together with heavy concern in your level of skill
Best Urban(ish) Bike Ride Phoenix 2011 - Arizona Canal Path
In a place filled with oversize pickups and SUVs operated by phone- and makeup-distracted motorists, riding on the Valley's streets can be intimidating. Fortunately for local pedal pushers, the Arizona Canal path between Granada Park (at 20th Street and Lincoln Drive) and 67th Avenue lays out gloriously unthreatened and uninterrupted for nearly 10 miles each way. The path rolls under every street it intersects with (save two, currently) and does continue west to 75th Avenue and east to the Wrigley Mansion, but the main section of the Arizona Canal truly is as car-free as it gets in Phoenix.