Whether you are a student, a bike messenger, an endurance rider, or simply an avid cyclist, there is a bag to fit your needs. Bumsteads has an excellent variety of bags for cyclists, even including smaller companies that many other bike shops leave out. Custom bags are available at Bumsteads as well. Come by and see what we can do for you! Since 1909, For 100 years the Bumsteads have been selling and servicing bicycles in the Pomona Valley under the shadow of Mt. Baldy. Now serving the communities of Ontario, Upland, Chino, Rancho Cucamonga, Claremont, Montclair, and Pomona with Trek Bicycles.