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S&S Cycle, founded in 1958 by George Smith Sr. and Stanley Stankos, is a renowned American manufacturer specializing in high-performance components and engines for V-twin motorcycles, particularly Harley-Davidson models. The company has built a reputation for innovation and quality in the motorcycle industry.

History and Evolution

The company's origins trace back to George Smith's success at the Bonneville Salt Flats in 1954, where he set a land speed record on a modified motorcycle equipped with homemade pistons and cylinders. This achievement led Smith and Stankos to establish S&S Cycle Equipment in 1958. After Stankos departed a year later, Smith and his wife Marjorie continued the business, with the company name conveniently retaining the "S&S" initials, aligning with Marjorie's maiden name.

Product Range

S&S Cycle offers a comprehensive array of products designed to enhance motorcycle performance:

Engines: Complete performance engines, such as the T143 series for 1999-2017 Big Twins and the MK136 engine for 2017-2023 M8 Touring models.

Performance Kits: Including the 100/110, 124/128, and 129/132 Power Packages, as well as the 136" & 131" Cylinder & Piston Kits.

Exhaust Systems: Options like the S&S Sidewinder® 2 Into 1 Exhaust Systems, SuperStreet 2:1 Exhaust System, and GNX Slip-Ons.

Carburetors and Air Cleaners: Notably, the Super E/G Carburetor Stealth Kits and Stealth Air Cleaner Kits.

Camshafts and Valve Train Components: Including cam chest kits for various models.

These products cater to a wide range of motorcycles, including Harley-Davidson, Indian, and Royal Enfield models, as well as off-road vehicles.

Innovations and Contributions

S&S Cycle has been instrumental in advancing motorcycle performance technology. The company played a pivotal role in the custom motorcycle movement, especially during periods when factory bikes had long wait times. By providing larger displacement engines, such as the 88 and 96 cubic inch models, S&S enabled custom manufacturers to offer immediate delivery of high-performance bikes, thereby becoming a preferred choice for many.

Company Milestones

1958: S&S Cycle is founded in Blue Island, Illinois.

1969: The company relocates to Viola, Wisconsin, to expand its manufacturing capabilities.

2008: Celebrates its 50th anniversary with a significant event attended by the international motorcycle community.

Current Operations

Today, S&S Cycle continues to lead in the high-performance motorcycle parts industry, offering a diverse product line that includes engines, exhaust systems, fuel systems, and more. The company remains committed to innovation, quality, and supporting the motorcycle community with products that enhance performance and reliability.

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