S&S Cycle Gasket Kit - 90-1914 For Harley Motorcycles 1999-2017 EXHAUST A Progressive Suspension rate spring

A Progressive Suspension rate spring has the advantage of a rising rate resistance to compression

00 MM LENGTH ONE INCH SHORTER THAN STOCK UNITS PAIR RIDING STYLE STREET

Features Arlen Ness Big Sucker™ breathing technology

NOTE: 1" Inch clamping area will not work with stock handlebars

S&S Cycle Gasket Kit - 90-1914 For Harley Motorcycles 1999-2017 EXHAUST A Progressive Suspension rate springFeatures Includes set of head and base gaskets, exhaust gaskets and O rings Layered steel head gaskets Made in the U. S. A. Kit does not include rocker box gaskets; must be purchased separately. Specs Product Name Gasket Kit Type Cylinder Head Cylinder Base Exhaust Material Layered Steel Bore Size 4. 125" 4,125" Features Stock Headbolt Pattern Units Kit Riding Style Street