The 26 x 1.75 size is the normal I.S.O. 559 mm size used on most mountain bikes; the 26 x 1 3/4 (I.S.O. 571 mm) is not interchangeable with any normal tire of similar width, although its bead circumference is the same as the "650C" size used on some high performance 26" wheel bicycles. We proudly serve all types of cyclists, including new and veteran riders, road and mountain aficionados, and recreation and transportation cyclists. Whether you prefer to shop on our website or to come visit us, we’re here to help you with all of your cycling needs. Learn more about what makes us unique, and visit us today to meet our friendly staff and experience our incredible product selection. This was a no-expense-spared project of Frank W. Schwinn, who wanted the bike to be introduced in 1938. Designating the width with a fraction instead of a decimal usually signifies a straight-sided rim, not a hook-edge rim. There are similar problems with other Schwinn tire sizes. The most common difficulty is that the Schwinn 26 x 1 3/8 (I. S.O. 597 mm) interchanges with the British 26 x 1 1/4, not the British 26 x 1 3/8 (I. S.O. 590 mm). You can complete our online Parts Request Form if you know what replacement part you need to order. W. Schwinn, grandson Frank Valentine Schwinn took over management of the company. By 1950, Schwinn had decided the time was right to grow the brand. At the time, most bicycle manufacturers in the United States sold in bulk to department stores, which in turn sold them as store brand models. F. Goodrich bicycles, sold in tire stores, Schwinn eliminated the practice of producing private label bicycles in 1950, insisting that the Schwinn brand and guarantee appear on all products. In exchange for ensuring the presence of the Schwinn name, distributors retained the right to distribute Schwinn bikes to any hardware store, toy store, or bicycle shop that ordered them. By 1979, even the Paramount had been passed, technologically speaking, by a new generation of American as well as foreign custom bicycle manufacturers. By the late 1970s, a new bicycle sport begun by enthusiasts in Northern California had grown into a new type of all-terrain bicycle, the mountain bike. Mountain bikes were originally based on Schwinn balloon-tired cruiser bicycles fitted with derailleur gears and called "Klunkers". Schwinn was, however, able to recruit an up-and- coming rider named Lance Armstrong to its ranks. Good mathematics doesn't always help you when it comes to bicycle tires. For example, most "middleweight" Schwinns take 26 x 1 3/4 tires, which are hard to find, not 26 x 1.75 as used on other brands. The wheel rims were likewise robust, chromed, stamped steel with a unique profile designed to hold the tire bead securely, even if pressure were low or lost. By 1975, bicycle customers interested in medium-priced road and touring bicycles had largely gravitated towards Japanese or European brands. In reality, mass-market French manufacturers such as Peugeot were not infrequently criticized for material and assembly quality — as well as stagnant technology — in their low- and mid-level product lines. Nevertheless, Peugeot proudly advertised its victorious racing heritage at every opportunity. Marc Muller, a young new Schwinn engineer, was given the responsibility to head up the project. The Paramount operations were moved to Waterford, Wisconsin, where the Paramount was reborn with a modern factory and workforce. Schwinn then partnered with 7-Eleven, establishing a team including Eric Heiden. When 7-Eleven decided to hit the big time in racing, Schwinn went its own way due to a lack of funding. Our culture is as fun and lively as the lifestyle brands we represent where innovative ideas are welcomed and customer satisfaction is our top priority. We offer service contracts on a monthly, bimonthly and quarterly basis. A preventive maintenance program helps to keep your equipment in top condition, decrease downtime, and prevent major equipment failures. Cleaning, lubricating and making adjustments as well as replacing worn parts are all necessary to ensure the safety and reliability of your equipment. A service contract is the best way to extend the life of your equipment and keep your facility safe, but we understand that a contract may not be feasible.