Progressive Heavy Duty Fork Spring Kit For Harley-Davidson 39mm ForkProgressive Heavy Duty Fork Spring Kit For Harley Davidson 39mm ForkSportster, FXR, and Dyna The 39mm fork is a wonderful upgrade from the 35mm unit it replaced, but it can display shortcomings when pushed hard, especially for loaded touring, when used on heavy Big Twins, or if routinely riding with a pillion. Progressive has a solution. Heavy duty version of Progressive Suspension's progressively wound fork springs Cost effective yet substantial

unlike standard models which feature contrasting machined fins on the end of the reg

These are far sturdier than rubber OEM manifolds and will help improve flow to your cylinder head

1-3/4" headpipes

Main spring coil absorbs big hits and prevents bottoming

this is proudly made in Ohio

This ultra small 12V

This fender is 6" Wide

With 6" of rise and 28" of overall width

Easy bolt-on installation

the TC Brothers developed an array of useful bungs for common fabrication tasks

but are much higher performing than factory mid controls

Sintered copper alloy construction