Improtant: Measure from the bottom neck bearing down to the axle. This springer that measurement is 18", 4" under stock size. (22" considered as the stock size.)
Features:
The reinforced top and bottom trees reduce flex and improve handling.
Heavy duty, one piece forged rear legs.
Improved durability Compatible with front rear legs.
Precision fit bronze rocker bushings Compatible with long life.
TIG welded alloy steel construction Compatible with strength and durability
9.5" between rockers where the axle goes between.
2" Tall Handlebar Riser
Adapter is used on Front Springer Forks and adapts 4-3/4" riser holes to standard 3-1/2"

Fitment:
These are designed to fit most H-D Big Twins from 1949-Present and 1982-2003 Sportsters with 1" neck bearings and 3/4" Axle.
Includes handlebar adapter, a 1" diameter steering stem, 3/4" diameter axle, and wheel spacers.
Includes 3/4" axle and wheel spacers Compatible with 1984-1999 H-D Wide Glide wheels.They work with a 11.5" H-D brake rotor (1984-1999), and Springer type brake calipers.
To install on 1952-1981 Sportsters, a 7/8" - 1" neck cup conversion kit will be needed.
You can run other wheels (Narrow Glide, etc) but you will need to cut your own wheel spacers in order to do so.
Not fit :
2004 & newer H-D Sportsters because of turning radius and fork lock interference
Dyna wide glide or narrow glide.
XS650, unless you purchase a conversion kit.
Vintage Triumph Models unless you purchase a conversion kit.