Progressive 944 FST Ultra Shocks For Harley Touring 1984-2025
Progressive 944 FST: Engineering the 2026 Standard for Touring Comfort
The Progressive Suspension 944 Series FST Ultra Shocks for 1984-2026 Harley-Davidson Touring models represent the 2026 pinnacle of rear suspension architecture for the FLH/FLT platform. For many bagger riders, the conflict between wanting a lower seat height and needing full suspension travel for long-distance comfort has been an ongoing challenge. The 944 Ultra addresses these 2026 concerns by incorporating a specialized internal design that sits at a 12-inch height when the rider is on the bike, yet utilizes the internal stroke of a 13-inch shock. This design provides secure, mechanical utility by allowing the rider to reach the ground more easily without the harsh bottoming out associated with traditional “lowered” shocks. This provides the mechanical synchronization of damping and spring rate needed to keep the heavy touring chassis composed, maximizing the efficiency of your 2026 performance build.
Frequency Sensing Technology and Industrial 2026 Precision
What sets the Progressive 944 apart in the 2026 marketplace is the patented Frequency Sensing Technology (FST). In the high-performance 2026 scene, riders demand a suspension that is smart enough to differentiate between a large pothole and small road chatter. FST allows the shock to dynamically adjust its own damping based on the frequency of the road impact, resulting in a secure, vibration-dampened installation that feels plush over small bumps but remains firm and supportive during aggressive 2026-spec cornering. Every 944 shock is constructed with a high-pressure nitrogen-charged monotube and a 2026-spec heavy-duty 16mm hard-chrome shaft, providing industrial-strength 2026 durability. Whether you are navigating broken 2026 city pavement or smooth mountain sweepers, the 944 FST ensures your Road Glide or Street Glide remains an icon of both stability and 2026-grade engineering integrity.
Progressive 944 FST Ultra Touring Technical Specifications
- Fitment: 1984-2026 Harley-Davidson Touring (Road Glide, Street Glide, Road King, Ultra).
- Technology: Frequency Sensing Technology (FST) for 2026-grade adaptive damping.
- Adjustment: Hand-adjustable threaded preload (no tools required).
- Travel: 13-inch full-stroke internals in a 12-inch low-profile 2026-spec body.
- Design: High-pressure nitrogen-charged Monotube with 2026-spec seals.
- Finish: Durable blacked-out 2026-spec finish for maximum corrosion resistance.
- Origin: Proudly Designed, Tuned, and Assembled in the USA.
Expert Installation & Performance Advice
As specialists in Bagger chassis dynamics, we recommend the 944 Ultra for any 2026 build that prioritizes a lower center of gravity without sacrificing ride quality. Pro Tip: To achieve your 2026-perfect setup, adjust the preload knob until you achieve approximately 1 inch of sag with the rider on the bike; this ensures you are in the 2026-spec “sweet spot” of the FST valving. Installation Note: For 1984-2026 models, ensure the mounting spacers are correctly placed to prevent the shock body from contacting the frame or saddlebag rails during 2026-spec suspension travel. Maintenance Note: Periodically wipe the shock shafts with a soft cloth to prevent 2026 road grime from damaging the high-pressure seals. Safety Note: Because these shocks significantly increase rear-end traction, ensure your **front fork internals** are also upgraded to Progressive Monotube Cartridges for total 2026-chassis synchronization and a secure, balanced ride.
The Professional Standard for Touring Suspension Integrity
Choosing the Progressive Suspension 944 Series Ultra Shocks means investing in unmatched mechanical stability and a refined engineering signature. It offers a unique combination of modern FST science and a robust design that honors the performance legacy of the Harley-Davidson brand. For the rider who wants a high-output 2026 presence and a flawless engineering finish, Progressive Suspension is the unmatched leader. Secure the ride, master the pavement, and ride the distance.
Features:
- Frequency Sensing Technology (FST) allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
- Adjust spring pre-load by hand, no special tool needed
- Progressive Rate Main springs specifically designed for touring
- Available in Standard, Heavy Duty, and Super Duty spring rates
- Lifetime Limited Warranty
| Product Style | AmericanV-twin Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
|---|---|---|---|---|---|
| Standard / 13″ Ultra Touring | 99842 | 693-578 | 99451 | 944-4002UT | In Stock: Ships within 24 hours |
| Standard / 12.5″ Ultra-Low | 10391 | 163-852 | 944-4001UL | In Stock: Ships within 24 hours | |
| 13″ Ultra Touring / Heavy Duty | 99815 | 504-829 | 99450 | 944-4020UT | In Stock: Ships within 24 hours |
| 12.5″ Ultra-Low / Heavy Duty | 10392 | 163-853 | 99449 | 944-4019UL | In Stock: Ships within 24 hours |
| 13″ Ultra Touring / Super Heavy Duty | 14255 | 922-575 | 944-4071UT | In Stock: Ships within 24 hours |
This Product Fits
Harley Davidson
Electra Glide Classic FLHTC/I 1984-2013
Electra Glide CVO/SE FLHTCSE 2004
Electra Glide CVO/SE FLHTCSE2 2005
Electra Glide Special FLHX 1984
Electra Glide Sport FLHS 1984-1993
Electra Glide Standard FLHT 2019, 2020, 2021, 2022
Electra Glide Standard FLHT/I 1984-2009
Electra Glide Ultra Classic FLHTCU/I 1989-2019
Electra Glide Ultra Classic Low FLHTCUL 2015, 2016
Electra Glide Ultra Limited CVO/SE FLHTKSE 2014-2021
Electra Glide Ultra Limited FLHTK 2010-2024
Electra Glide Ultra Limited Low FLHTKL 2015, 2016, 2017, 2018, 2019
FLH 1984, 1985
Road Glide Custom FLTRX 2010, 2011, 2012, 2013
Road Glide CVO/SE FLTRSE3 2009
Road Glide CVO/SE FLTRSEI2 2001
Road Glide CVO/SE FLTRXSE 2012, 2013
Road Glide FLTR/I 1998-2009
Road Glide FLTRX 2015-2023
Road Glide Limited CVO FLTRKSE 2022, 2023
Road Glide Limited FLTRK 2020, 2021, 2022, 2023, 2024
Road Glide SE FLTRSEI 2000
Road Glide Special FLTRXS 2015-2023
Road Glide ST FLTRXST 2022, 2023
Road Glide Ultra CVO/SE FLTRUSE 2011, 2015, 2016
Road Glide Ultra FLTRU 2011-2019
Road King Classic FLHRC/I 1998-2013
Road King Custom FLHRS/I 2004, 2005, 2006, 2007
Road King CVO/SE FLHRSE3 2007
Road King CVO/SE FLHRSE4 2008
Road King CVO/SE FLHRSE5 2013
Road King CVO/SE FLHRSE6 2014
Road King CVO/SE FLHRSEI 2002
Road King CVO/SE FLHRSEI2 2003
Road King FLHR/I 1994-2022
Road King Special FLHRXS 2017-2025
Street Glide CVO/SE FLHXSE 2010, 2015, 2016
Street Glide CVO/SE FLHXSE2 2011
Street Glide CVO/SE FLHXSE3 2012
Street Glide FLHX/I 2006-2023
Street Glide Special FLHXS 2014-2023
Street Glide ST FLHXST 2022, 2023
Tour Glide Classic FLTC/I 1984-1991
Tour Glide FLT 1984, 1985, 1986
Tour Glide Ultra Classic FLTCU/I 1989-1996
Ultra Classic Electra Glide CVO/SE FLHTCUSE 2006
Ultra Classic Electra Glide CVO/SE FLHTCUSE2 2007
Ultra Classic Electra Glide CVO/SE FLHTCUSE3 2008
Ultra Classic Electra Glide CVO/SE FLHTCUSE4 2009
Ultra Classic Electra Glide CVO/SE FLHTCUSE5 2010
Ultra Classic Electra Glide CVO/SE FLHTCUSE6 2011
Ultra Classic Electra Glide CVO/SE FLHTCUSE7 2012
Ultra Classic Electra Glide CVO/SE FLHTCUSE8 2013





