Hayden M6 Self-Adjusting Primary Chain Tensioner for 2001-2006 Harley-Davidson Big Twin Cables/Switches & Controls Handlebars and Controls Economical choice when building a

Economical choice when building a bike from scratch

Complete kit includes: Ignition module

Choice of spring style and height

The element is washable and reusable

See the infographic to see exactly how this looks—it isn't pretty

Hayden M6 Self-Adjusting Primary Chain Tensioner for 2001-2006 Harley-Davidson Big Twin Cables/Switches & Controls Handlebars and Controls Economical choice when building aHayden M6 Self Adjusting Primary Chain Tensioner for 2001 2006 Harley Davidson Big Twin The primary case is a defining feature of the Harley Davidson Big Twin, but it has its shortcomings. Chains do require adjustment, and getting the adjustment just right to accommodate shifting and clutch operation can be a balancing act. Why not do it auto magically? Spring loaded tensioner eliminates manual adjustments Applies constant, repeatable tension on the