S&S Cycle has been a leading manufacturer of Proven Performance V-Twin motorcycle components and engines for over 45 years. George Smith and Stanley Stankos founded the company in 1958 in Blue Island, Illinois . Shortly after the founding of S&S, George, and his wife Marjorie (whose maiden name was also Smith), bought out Stanley Stankos and Smith & Stankos became Smith & Smith (S&S).

In 1969, S&S moved from Blue Island to Viola, Wisconsin and expanded to La Crosse , Wisconsin in 2004. This 3rd generation business supplies components and/or engines to several large custom OEs including: American Ironhorse, Arlen Ness, Big Dog, BMC, Bourget Bike Works, Hellbound Steel, Rucker Performance, Swift, Titan, Ultra, Vengeance, & Victory (please see the S&S website for a complete listing).