Schwinn Protocol 1 0 Males's Dual-suspension Mountain Bike 26-inch Wheels Its options and design considerations are tailored to fulfill the wants of newbie and intermediate mountain bikers, showcasing a steadiness between practicality and aesthetics. The firm's subsequent reply to requests for a Schwinn mountain bike was the King Sting and the Sidewinder, inexpensive BMX-derived bicycles fabricated from current electro-forged frame designs, and utilizing off-the-shelf BMX elements. As a end result, Schwinns grew to become more and more dated in both styling and expertise. By 1957, the Paramount collection, once a premier racing bicycle, had atrophied from a scarcity of attention and modernization. Aside from some new frame lug designs, the designs, methods and tooling have been the identical as had been used in the Nineteen Thirties. The Paramount continued as a restricted production model, inbuilt small numbers in a small apportioned area of the old Chicago assembly manufacturing facility.