Quick Drop: Progressive Drop-In Fork Lowering Kit for Harley Dyna (1991–2005)

The Progressive Suspension Drop-In Fork Lowering Kit (Part #10-2001) is a hugely popular product for owners of the earlier Harley-Davidson Dyna platform from 1991 through 2005 (mostly 39mm fork models).

This kit is renowned for achieving a custom, lowered stance with the easiest installation process on the market, avoiding the complex fork disassembly required by traditional lowering methods.
Drop-In Technology: Simple Installation

The “Drop-In” technology is the defining feature of this Progressive kit, making it highly accessible for home mechanics:

Lowering Amount: The kit allows you to lower the front end by up to 2 inches. Riders can typically choose between a 1-inch or 2-inch drop by adjusting the provided spacer length.

No Fork Disassembly: The entire procedure is designed to be completed without removing the fork legs from the triple trees, draining the fork oil, or replacing the fork seals. You only need to remove the fork caps.

Basic Tools Required: The simple installation process can be accomplished with basic hand tools, transforming a traditionally tedious job into a quick, 30-minute procedure.

Components and Performance

The kit uses specially engineered springs to achieve the lowered height while maintaining control:

Progressive Rate Springs: Includes shorter main fork springs with a Progressive Rate (e.g., 70 lbs/in). This design helps the front end ride smoothly over small bumps but firms up quickly to resist bottoming out on the reduced travel.

Secondary Compensation Springs: The kit includes compensating springs that work under the load of the bike to compress the main spring and achieve the lowered stance once the fork cap is reinstalled.

Preload Spacers: Includes PVC spacers that can be trimmed to dial in the final ride height and preload precisely.
The Progressive Drop-In Lowering Kit Dyna 1991-2005 is the perfect option for achieving a killer custom stance and better footing without the hassle and cost of a complex fork rebuild.

Progressive Drop-In Fork Lowering Kit For Harley Dyna
Features:

This fork Lowering Kit has transformed a once messy, and time consuming install into an easy install
Pull up to two inches out of the front end of your bike without the hassle of disassembling the forks, pulling the wheel or even changing out the oil and the whole process can be done with basic tools
Shorter springs and Progressive’s secondary compensator spring make short work of the formerly complicated act of lowering your front end

Made in the USA

Fitment Notes & Exceptions

Will not fit FXDWG (Dyna Wide Glide)
Changing ride height can potentially change many carefully-engineered attributes of your bike, including trail and mechanical trail
A change in ride height at one end of the vehicle usually will require a change at the other end
Prior to purchasing springs that are different than your OEM length, please verify that wheel and suspension travel can be altered without causing clearance issues – common interference spots include triple trees, fenders, frame, and, of course, the ground.

This Product Fits

Harley Davidson
Dyna Convertible FXDS 1994-2000
Dyna Glide Custom FXDC 1992
Dyna Glide Daytona FXDB-D 1992
Dyna Glide Sturgis FXDB-S 1991
Dyna Low Rider FXDL/I 1993-2005
Dyna Super Glide Custom FXDC/I 2005
Dyna Super Glide FXD/I 1995-2005
Dyna Super Glide Sport FXDX 1999-2005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003