AMERICA'S LARGEST AFTERMARKET HARLEY-DAVIDSON

V-TWIN & INDIAN MOTORCYCLE PARTS STORE!

S&S Cycle

S&S Cycle

What started as a passion for speed, grew into the best known company name in the V-Twin high performance aftermarket. George J. Smith had to build his own parts to make his motorcycle faster. Now the company he founded manufactures the most prestigious line of "go fast" v-twin engine parts in the world. The company was started in the basement of his home in Blue Island IL in 1958, and moved to Viola, WI in 1969. In 2004 an additional facility was opened in La Crosse, WI.

S&S Cycle, Inc. has been in the v-twin high performance parts business for over 50 years, specializing in motorcycle parts like high performance motorcycle kits for Harley-Davidson® motorcycles. We manufacture a complete line of motorcycle performance products ranging from motorcycle slip-on exhaust, bolt on performance intakes, motorcycle big bore kits, or a complete motorcycle engine.

Although we are known for Super Series of performance carburetors and for motorcycle engines, S&S Cycle, Inc. proudly offers sidewinder big bore kits, our stealth motorcycle air cleaner kit, and many other ways to help you get more horsepower and torque.

S&S is currently featuring a full line of performance exhaust for Harley® including our touring exhaust.  Coupled with S&S Cycle's new performance headers, you ensure that your motorcycle exhaust system is performance orientated and great looking.

For the late model performance rider: Everyone needs to take that first step! S&S offers a logical, cost effective 4 step plan for performance increases.  These range from small steps like mufflers and intakes, or getting more horsepower out of your motorcycle engine with big bore kits and more. 

For the Vintage enthusiast: With over a half century in the business, we know vintage and we have the products to prove it in our motorcycle vintage parts offering. With our age also comes experience and the reputation as one of the most trusted names in performance v-twin parts and motorcycle engines for Harley-Davidson® and other American v-twins.


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S&S Cycle Cylinder, Kit, 4.250" Bore, Stock Bolt Pattern, 4.840", 4.500" Stroke, w/ S&S Logo, 920-0140, Black Granite w/ Highlight, 2017-up M8 Models 910-0733

S&S Cycle Cylinder, Kit, 4.250" Bore, Stock Bolt Pattern, 4.840", 4.500" Stroke, w/ S&S Logo, 920-0140, Black Granite w/ Highlight, 2017-up M8 Models 910-0733

Features & Benefits Available 117 M8 models 117 to 128" big bore kit Black Granite with Highlighted..

$1,061.06 $1,178.95

S&S Cycle Cylinder, Service, Big Bore, 750cc, Royal Enfield 650 Twin 910-0760

S&S Cycle Cylinder, Service, Big Bore, 750cc, Royal Enfield 650 Twin 910-0760

Cylinder, Service, Big Bore, 750cc, Royal Enfield 650 TwinBrand: S&S CyclePart Number: 910-0760..

$449.95

S&S Cycle Cylinder, Set, 4.250" Bore, Stock Bolt Pattern, 4.840", w/ S&S Logo, Black Granite w/ Highlight, 2017-up M8 Models 910-0739

S&S Cycle Cylinder, Set, 4.250" Bore, Stock Bolt Pattern, 4.840", w/ S&S Logo, Black Granite w/ Highlight, 2017-up M8 Models 910-0739

Features & Benefits Bolt on Cylinder Set For M8 Models Black Granite With Highlighted Fins 4.250 Bo..

$856.95

S&S Cycle Dealer Kit, Service, S&S, Tamperproof Screw 510-0684

S&S Cycle Dealer Kit, Service, S&S, Tamperproof Screw 510-0684

Dealer Kit, Service, S&S, Tamperproof ScrewBrand: S&S CyclePart Number: 510-0684..

$42.95

S&S Cycle ECM, Kit, USB, DBVFI, Programmed, X132, Knock Control, X-Wedge Confederate 550-0653

S&S Cycle ECM, Kit, USB, DBVFI, Programmed, X132, Knock Control, X-Wedge Confederate 550-0653

ECM, Kit, USB, DBVFI, Programmed, X132, Knock Control, X-Wedge ConfederateBrand: S&S CyclePart Numb..

$968.95

S&S Cycle ECM, Kit, VFI, Delphi, 50 State, MY15 Release, 124", Custom 550-0548

S&S Cycle ECM, Kit, VFI, Delphi, 50 State, MY15 Release, 124", Custom 550-0548

ECM, Kit, VFI, Delphi, 50 State, MY15 Release, 124", CustomBrand: S&S CyclePart Number: 550-0548..

$968.95

S&S Cycle ECM, Kit, VFI, Delphi, CLEFI, Emissions Baseline, 124", Avantura 550-0762

S&S Cycle ECM, Kit, VFI, Delphi, CLEFI, Emissions Baseline, 124", Avantura 550-0762

ECM, Kit, VFI, Delphi, CLEFI, Emissions Baseline, 124", AvanturaBrand: S&S CyclePart Number: 550-0..

$968.95

S&S Cycle ECM, Kit, VFI, Delphi, CLEFI, Emissions Baseline, Unlocked, 111", Custom 550-0716

S&S Cycle ECM, Kit, VFI, Delphi, CLEFI, Emissions Baseline, Unlocked, 111", Custom 550-0716

ECM, Kit, VFI, Delphi, CLEFI, Emissions Baseline, Unlocked, 111", CustomBrand: S&S CyclePart Number..

$1,017.95

S&S Cycle ECM, Kit, w/Adapter Harness, Royal Enfield 650 Twin 550-0959

S&S Cycle ECM, Kit, w/Adapter Harness, Royal Enfield 650 Twin 550-0959

ECM, Kit, w/Adapter Harness, Royal Enfield 650 TwinBrand: S&S CyclePart Number: 550-0959..

$799.95

S&S Cycle Exhaust System, Complete, 50 State, 2 Into 2, Chrome, Chrome Tracer, 2017-'19 M8 Touring 550-0851

S&S Cycle Exhaust System, Complete, 50 State, 2 Into 2, Chrome, Chrome Tracer, 2017-'19 M8 Touring 550-0851

Features & Benefits 50 State legal, EPA and CARB compliant: EO# K-010-10 Improved power and torque f..

$1,349.95

S&S Cycle Exhaust System, Complete, Super Street, 2 into 1, Black, 2018-'19 M8 Softail Fat Boy, and Breakout 550-0857

S&S Cycle Exhaust System, Complete, Super Street, 2 into 1, Black, 2018-'19 M8 Softail Fat Boy, and Breakout 550-0857

Exhaust System, Complete, Super Street, 2 into 1, Black, 2018-'19 M8 Softail Fat Boy, and BreakoutBr..

$974.95

S&S Cycle Exhaust System, Complete, Super Street, 2 into 1, Chrome, 2018-'19 M8 Softail Fat Boy, and Breakout 550-0858

S&S Cycle Exhaust System, Complete, Super Street, 2 into 1, Chrome, 2018-'19 M8 Softail Fat Boy, and Breakout 550-0858

Exhaust System, Complete, Super Street, 2 into 1, Chrome, 2018-'19 M8 Softail Fat Boy, and BreakoutB..

$1,074.95

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