Mr. B's Bicycles is Yuma's premier bicycle shop. There are 3 locations in Yuma. (4th avenue, the foothills, and avenue B)
They have hundreds of bikes, and just about any accessory you could possibly want, to go along with the bike. They also have a professional service and repair department.
I took my Son to Mr. B's, for his first bike. They helped us select a bike that would fit him properly, and helped us pick the gear.
Mr B's is a great full service bike shop!