✦ Ground shipping $14.95 — free over $150✦ Live stock — re-checked when you pay✦ Real prices, no dealer markup games✦ Questions answered by a human: 801-361-3010✦ Licensed Utah dealer № 140069✦ Ground shipping $14.95 — free over $150✦ Live stock — re-checked when you pay✦ Real prices, no dealer markup games✦ Questions answered by a human: 801-361-3010✦ Licensed Utah dealer № 140069
Shop › Rear Suspension
Progressive Suspension 444 Series Shock — 13" — Standard/Heavy-Duty — Black
In stock

Progressive Suspension 444 Series Shock — 13" — Standard/Heavy-Duty — Black

Progressive Suspension · #1310-0750 · Rear Suspension / Suspension & Frame
  • Features 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
  • Made in the USA
$860.95
In stock. Ships in 2–4 business days · free shipping over $150.
View cart & check out →
Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
Shop all Progressive Suspension
Everything we carry from Progressive Suspension →
Description & features9 features

Standard Duty for the following fitment:

• '80-'98 FLT/FLHT/FLHR/FLTR

• '06-'24 FLT/FLHT/FLHR/FLTR/FLHX (except H-D FL Trike)

• '99-'05 FLT/FLHT/FLHR/FLTR

Heavy-Duty for the following fitment:

• '82-'94, '99-'00 FXR

• '79-'85 XL

• '77-'78 XLCR

• '04-'21 XL (except RH Sportster)

• '86 -'03 XL

  • Features 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
  • Made in the USA
  • 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.
Specifications15 specs
Riding Style
Street
Reservoir Location
Internal
Color/Finish
Black
Units
Pair
Duty
Heavy Duty, Standard
Mounting Position
Rear
Type
Coilover Monotube
Adjustment Style
Automatic
Extended Length
13.00"
Progressive Spring Rate
90.00 lb/in - 130.00 lb/in
Spring Type
Single Progressive Rate
Model
444 Series
Shipping weight
8.95 lb
Package size
17 × 6.5 × 3.5 in
Country of origin
Taiwan
Fitment133 models · Harley-Davidson
Harley-Davidson133 models
  • 1200 Custom EFI XLC2002–2006
  • 1200 Low EFI XLL2006
  • 1200 Roadster EFI XLR2006
  • 883 Custom EFI XLC2004–2006
  • 883 EFI XL2009
  • 883 Low EFI XLL2006
  • 883 Roadster EFI XLR2006
  • 883 Roadster XLR2007
  • Café Racer XLCR1979
  • Electra Glide Police FLHTPI1995–2025
  • Electra Glide Police FLHTP1983–2006
  • Electra Glide Standard EFI FLHTI2000, 2002
  • Electra Glide Standard FLHT1983–1985
  • Electra Glide Ultra Classic FLHTCU1998–2006
  • Electra Glide Ultra Classic Low FLHTCUL2014
  • FLH Electra Glide1985
  • FLH Electra Glide Revival2021
  • FLHC Electra Glide Classic1980–1981
  • FLHFB Electra Glide Highway King2023
  • FLHR Road King1994–2022
  • FLHRC Road King Classic2007–2013
  • FLHRCI Road King Classic1995–2006
  • FLHRI Road King1996–1997, 2000–2006
  • FLHRS Road King Custom2004–2007
  • FLHRSE3 Screamin Eagle Road King2007
  • FLHRSE4 Screamin Eagle Road King2008
  • FLHRSE5 CVO Road King2013
  • FLHRSE6 CVO Road King2014
  • FLHRSEI Screamin Eagle Road King2002
  • FLHRSEI2 Screamin Eagle Road King 22003
  • FLHRSI Road King Custom2004–2006
  • FLHRXS Road King Special2017–2025
  • FLHS Electra Glide Sport1980–1982, 1987–1993
  • FLHT Electra Glide Standard1986–1987, 1995–2009, 2019
  • FLHTC Electra Glide Classic1983–2013
  • FLHTCI Electra Glide Classic1995–2006
  • FLHTCSE Screamin Eagle Electra Glide2004
  • FLHTCSE2 Screamin Eagle Electra Glide 22005
  • FLHTCU Electra Glide Ultra Classic1989–1997, 2007–2019
  • FLHTCUI Electra Glide Ultra Classic1995–2006
  • FLHTCUL Electra Glide Ultra Classic Low2015–2016
  • FLHTCUSE Screamin Eagle Ultra Classic Electra Glide2006
  • FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide2007
  • FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide2008
  • FLHTCUSE4 CVO Ultra Classic Electra Glide2009
  • FLHTCUSE5 CVO Ultra Classic Electra Glide2010
  • FLHTCUSE6 CVO Ultra Classic Electra Glide2011
  • FLHTCUSE7 CVO Ultra Classic Electra Glide2012
  • FLHTCUSE8 CVO Ultra Classic Electra Glide2013
  • FLHTI Electra Glide Standard2003–2006
  • FLHTK Ultra Limited2010–2024
  • FLHTKL Ultra Limited Low2015–2019
  • FLHTKSE CVO Limited2014–2021
  • FLHX Electra Glide Special1984–1985
  • FLHX Street Glide2006–2024
  • FLHXI Street Glide2006
  • FLHXS Street Glide Special2014–2023
  • FLHXSE CVO Street Glide2010, 2015–2025
  • FLHXSE2 CVO Street Glide2011
  • FLHXSE3 CVO Street Glide2012
  • FLHXST Street Glide ST2022–2023
  • FLHXU Street Glide Ultra2025
  • FLHXXX Street Glide Trike2010–2011
  • FLT Tour Glide1980–1983
  • FLTC Tour Glide Classic1981–1993
  • FLTCU Tour Glide Ultra Classic1989–1995
  • FLTCUI Tour Glide Ultra Classic1996
  • FLTR Road Glide1998–2010, 2016
  • FLTRI Road Glide1998–2006
  • FLTRK Road Glide Limited2020–2024
  • FLTRSE3 CVO Road Glide2009
  • FLTRSEI Screamin Eagle Road Glide2000
  • FLTRSEI2 Screamin Eagle Road Glide 22001
  • FLTRU Road Glide Ultra2011–2013, 2016–2019
  • FLTRUSE CVO Road Glide Ultra2011, 2015–2016
  • FLTRX Road Glide2015, 2017–2024
  • FLTRX Road Glide Custom2011–2013
  • FLTRXS Road Glide Special2015–2023
  • FLTRXSE CVO Road Glide2012, 2018–2025
  • FLTRXSE2 CVO Road Glide Custom2013
  • FLTRXST Road Glide ST2022–2023
  • FLTRXSTSE CVO Road Glide ST2024–2025
  • FXLR Low Rider Custom1987–1994
  • FXR Super Glide II1982–1983, 1986–1994
  • FXRC Low Rider Chrome1985, 1987
  • FXRDG Disc Glide1984
  • FXRS Low Glide1984–1988, 1991–1992
  • FXRT Sport Glide1983–1992
  • Low Rider FXRS1989–1990, 1993
  • Road Glide Custom FLTRX2025
  • Road Glide Police FLTRXP2024–2025
  • Road King EFI FLHR1995, 1998–1999
  • Road King Police FLHP2014–2025
  • Sport Glide FXRT1993
  • Sportster 1200 XLH1999–2003
  • Sportster 1200 XR2011–2012
  • Sportster 750 XR1979–1985
  • Sportster 883 XLH1987, 1989–2003
  • Street Glide EFI FLHX2025
  • Super Glide II FXRS1982–1983
  • Tour Glide Classic FLTC1980, 1994
  • Tour Glide FLT1984–1986
  • Tour Glide Ultra Classic FLTCU1996
  • XL1200C Sportster 1200 Custom1996–2019
  • XL1200CX Roadster2016–2020
  • XL1200L Sportster 1200 Low2006–2011
  • XL1200N Sportster 1200 Nightster2007–2012
  • XL1200NS Iron 12002019–2021
  • XL1200R Sportster 1200 Roadster2004–2009
  • XL1200S Sportster 1200 Sport1996–2003
  • XL1200T SuperLow 1200T2014–2017
  • XL1200V Seventy-Two2012–2016
  • XL1200X Forty-Eight2010–2022
  • XL1200XS Forty-Eight Special2019
  • XL50 50th Anniversary Sportster2007
  • XL883 Sportster2004–2008
  • XL883C Sportster 883 Custom1999–2009
  • XL883L Sportster 883 Low2005–2010
  • XL883L SuperLow2011–2017
  • XL883N Iron 8832009–2022
  • XL883R Sportster 883 Roadster2002–2003, 2005–2007
  • XLCH1979
  • XLCR Cafe Racer1977–1978
  • XLH10001979–1985
  • XLH11001986–1987
  • XLH12001988–1998
  • XLH8831986, 1988, 1999–2001
  • XLH883DLX Sportster 883 Deluxe1986–1995
  • XLH883HUG Sportster 883 Hugger1987–1998, 2002–2003
  • XLS Roadster1979–1985
  • XLX 10001983–1985
  • XR10001983–1985
  • XR12002010
Fitment comes from the catalog data for this part. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.
Part numbers
Salto part #
1310-0750
Progressive Suspension part #
444-4002B
Shipping

In stock. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is checked again before your card is charged.

Questions4 answers
Is it in stock?
Yes — it’s in stock right now. We check again the moment you order, before anything is charged.
How fast will it get to me?
Usually 2–4 business days by ground.
Will it fit my machine?
It’s listed for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine Progressive Suspension?
Yes. It’s new and genuine, straight from Salto — Progressive Suspension part #444-4002B.

More Progressive Suspension rear suspension