Description
Progressive Suspension - 444-4021B - 444 Series Shock - Black - Heavy-Duty - 13.5"
Features
- Feature the all-new Frequency Sensing Technology (FST) which allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
- Deflective disc valving
- Pre-load spring adjusts by hand with no special tool needed
- Includes a progressive-rate spring and are high-pressure gas charged for consistent performance
- Shocks slightly longer than stock may alter head angle slightly and provide quicker steering.
- Shocks slightly shorter than stock may alter head angle and provide slower steering.
- Before purchasing or attempting to install shocks different than OEM length, confirm your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact and chain/belt guard or tire contact.
- Heavy duty applications recommended for bikes operating at or near maximum load rating over 50% of the time.
- Progressive Suspension Since 1982
Specs
| Product Name | Shock Absorber |
| Reservoir Location | Internal |
| Units | Pair |
| Extended Length Imperial | 13.50'' |
| Spring Type | Single Progressive Rate |
| Riding Style | Street |
| Duty | Heavy Duty |
| Progressive Spring Rate Imperial | 105.00 lb/in - 150.00 lb/in |
| Color/Finish | Black |
| Mounting Position | Rear |
| Type | Coilover Monotube |
| Adjustment Style | Automatic |
| Model | 444 Series |
Fitment
| 2009 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE4 |
| 2010 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE5 |
| 2011 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE6 |
| 2012 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE7 |
| 2013 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE8 |
| 2014-2021 | Harley-Davidson | CVO Electra Glide Ultra Limited FLHTKSE |
| 2012, 2018-2023 | Harley-Davidson | CVO Road Glide Custom FLTRXSE |
| 2013 | Harley-Davidson | CVO Road Glide Custom FLTRXSE2 |
| 2009 | Harley-Davidson | CVO Road Glide FLTRSE3 |
| 2024 | Harley-Davidson | CVO Road Glide ST FLTRXSTSE |
| 2011, 2015-2016 | Harley-Davidson | CVO Road Glide Ultra FLTRUSE |
| 2014 | Harley-Davidson | CVO Road King FLHRSE |
| 2013 | Harley-Davidson | CVO Road King FLHRSE5 |
| 2010, 2015-2022, 2024 | Harley-Davidson | CVO Street Glide FLHXSE |
| 2011 | Harley-Davidson | CVO Street Glide FLHXSE2 |
| 2012 | Harley-Davidson | CVO Street Glide FLHXSE3 |
| 1995-2013 | Harley-Davidson | Electra Glide Classic EFI FLHTCI |
| 1980-1981 | Harley-Davidson | Electra Glide Classic FLHC |
| 1983-2006 | Harley-Davidson | Electra Glide Classic FLHTC |
| 1985 | Harley-Davidson | Electra Glide FLH |
| 2023 | Harley-Davidson | Electra Glide Highway King FLHFB |
| 1995-2019, 2021-2024 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1983-2006 | Harley-Davidson | Electra Glide Police FLHTP |
| 2021 | Harley-Davidson | Electra Glide Revival |
| 1984-1985 | Harley-Davidson | Electra Glide Special FLHX |
| 1980-1982, 1987-1993 | Harley-Davidson | Electra Glide Sport FLHS |
| 2000-2009, 2019 | Harley-Davidson | Electra Glide Standard EFI FLHTI |
| 1983-1987, 1995-2006 | Harley-Davidson | Electra Glide Standard FLHT |
| 1995-2019 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI |
| 1989-2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU |
| 2014-2016 | Harley-Davidson | Electra Glide Ultra Classic Low FLHTCUL |
| 2010-2024 | Harley-Davidson | Electra Glide Ultra Limited FLHTK |
| 2015-2019 | Harley-Davidson | Electra Glide Ultra Limited Low FLHTKL |
| 1998-2009 | Harley-Davidson | Road Glide EFI FLTR |
| 2010-2013, 2015-2023 | Harley-Davidson | Road Glide Custom FLTRX |
| 1998-2006 | Harley-Davidson | Road Glide FLTR |
| 2020-2023 | Harley-Davidson | Road Glide Limited FLTRK |
| 2024 | Harley-Davidson | Road Glide Police FLTRXP |
| 2015-2023 | Harley-Davidson | Road Glide Special FLTRXS |
| 2022-2023 | Harley-Davidson | Road Glide ST FLTRXST |
| 2011-2013, 2016-2019 | Harley-Davidson | Road Glide Ultra FLTRU |
| 1995-2013 | Harley-Davidson | Road King Classic EFI FLHRC |
| 2009-2013 | Harley-Davidson | Road King Classic FLHRC |
| 2004-2007 | Harley-Davidson | Road King Custom EFI FLHRS |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRS |
| 1995-2022 | Harley-Davidson | Road King EFI FLHR |
| 1994-2006 | Harley-Davidson | Road King FLHR |
| 2014-2024 | Harley-Davidson | Road King Police FLHP |
| 2017-2025 | Harley-Davidson | Road King Special FLHRXS |
| 2004 | Harley-Davidson | Screamin' Eagle Electra Glide FLHTCSE |
| 2005 | Harley-Davidson | Screamin' Eagle Electra Glide FLHTCSE2 |
| 2006 | Harley-Davidson | Screamin' Eagle Electra Glide Ultra Classic FLHTCUSE |
| 2007 | Harley-Davidson | Screamin' Eagle Electra Glide Ultra Classic FLHTCUSE2 |
| 2008 | Harley-Davidson | Screamin' Eagle Electra Glide Ultra Classic FLHTCUSE3 |
| 2000 | Harley-Davidson | Screamin' Eagle Road Glide FLTRSE-I |
| 2001 | Harley-Davidson | Screamin' Eagle Road Glide FLTRSE-I2 |
| 2007 | Harley-Davidson | Screamin' Eagle Road King FLHRSE3 |
| 2008 | Harley-Davidson | Screamin' Eagle Road King FLHRSE4 |
| 2002 | Harley-Davidson | Screamin' Eagle Road King FLHRSE-I |
| 2003 | Harley-Davidson | Screamin' Eagle Road King FLHRSE-I2 |
| 2006-2024 | Harley-Davidson | Street Glide EFI FLHX |
| 2006 | Harley-Davidson | Street Glide FLHX |
| 2014-2023 | Harley-Davidson | Street Glide Special FLHXS |
| 2022-2023 | Harley-Davidson | Street Glide ST FLHXST |
| 2010-2011 | Harley-Davidson | Street Glide Trike FLHXXX |
| 1980-1987, 1989-1994 | Harley-Davidson | Tour Glide Classic FLTC |
| 1980-1986 | Harley-Davidson | Tour Glide FLT |
| 1996 | Harley-Davidson | Tour Glide Ultra Classic EFI FLTCU |
| 1989-1996 | Harley-Davidson | Tour Glide Ultra Classic FLTCU |
