QUALITY BICYCLE PRODUCTS Q Tubes Schrader Valve, 12.5 x 2.25 in. . 2012897. . . . Whether you???re making necessary repairs or just tuning up for the season, count on the Q Tubes Schrader Valve to make your bike as functional as can be. . . . 12.5 x 2.25 in.. . Imported. . 708752053922 29253100006 TU5700