Product Description
S&S Cycle Heavy-Duty Primary Chain - 2006-2017 Dyna & 2007-2017 Softail
Your Twin Cam Dyna or Softail's primary chain is the backbone of power delivery from the crankshaft to the transmission. The S&S Cycle Heavy-Duty Primary Chain is engineered to handle the rigors of performance builds and aggressive riding while outlasting factory chains by a significant margin. Heat-treated construction resists stretch and premature wear, ensuring smooth power transfer and reduced maintenance. Whether you're running a built motor or maintaining a stock Twin Cam, this chain delivers the strength and reliability your bike needs for miles of trouble-free performance.
Fitment
- 2006-2017 Harley-Davidson Dyna Models (Twin Cam 96/103)
- 2007-2017 Harley-Davidson Softail Models (Twin Cam 96/103/110)
- All Dyna variants including FXDB, FXDC, FXDL, FXDWG
- All Softail variants including FXST, FLST, FXSB, FXSTC, FLSTC
Features & Benefits
- 11% Stronger Than OEM - Enhanced tensile strength handles high-torque applications and performance builds
- Extended Chain Life - Heat-treated components resist stretch and wear for longer service intervals
- Direct OEM Replacement - Drop-in installation using factory procedures with no modifications required
- Precision Manufactured - Tight tolerances ensure smooth operation and consistent power delivery
- Reduced Maintenance - Superior durability means fewer adjustments and extended replacement cycles
- Performance Proven - Trusted by builders and riders running cams, big-bore kits, and high-compression builds
Why Upgrade?
Factory primary chains on Twin Cam Dyna and Softail models were engineered for stock power levels and can stretch prematurely when subjected to performance modifications, aggressive riding, or high mileage. The S&S Heavy-Duty Primary Chain is built to withstand the increased demands of cammed engines, big-bore stroker kits, and high-output builds common in the custom scene. This upgrade eliminates chain noise, reduces drivetrain slop, and provides peace of mind whether you're carving canyons or putting down miles on the highway.
Note: Part Number 560-0448. Designed for 2006-2017 Dyna and 2007-2017 Softail models with Twin Cam 96, 103, and 110 engines. Does not fit 2018+ M8 Softail models. Professional installation recommended for proper primary service and chain tensioning.
Fitment
| 2025 | Harley-Davidson | Softail Fat Boy FLFB | - | - |
| 2023-2025 | Harley-Davidson | FXBR Breakout 117 | - | - |
| 2022-2025 | Harley-Davidson | FXLRS Low Rider S 117 | - | - |
| 2022-2025 | Harley-Davidson | FXLRST Low Rider ST 117 | - | - |
| 2022 | Harley-Davidson | FXRST Low Rider El Diablo 117 | - | - |
| 2021-2024 | Harley-Davidson | FXBBS Street Bob 114 | - | - |
| 2020-2024 | Harley-Davidson | FXST Softail Standard 107 | - | - |
| 2020-2021 | Harley-Davidson | FXLRS Low Rider S 114 | - | - |
| 2019-2020 | Harley-Davidson | FXDRS FXDR 114 | - | - |
| 2018-2024 | Harley-Davidson | FLFBS Fat Boy 114 | - | - |
| 2018-2024 | Harley-Davidson | FLHCS Heritage Classic 114 | - | - |
| 2018-2024 | Harley-Davidson | FLSB Sport Glide 107 | - | - |
| 2018-2023 | Harley-Davidson | FXFBS Fat Bob 114 | - | - |
| 2018-2021 | Harley-Davidson | FLSL Softail Slim 107 | - | - |
| 2018-2021 | Harley-Davidson | FLHC Heritage Classic 107 | - | - |
| 2018-2020 | Harley-Davidson | FLDE Deluxe 107 | - | - |
| 2018-2020 | Harley-Davidson | FXBRS Breakout 114 | - | - |
| 2018-2020 | Harley-Davidson | FXLR Low Rider 107 | - | - |
| 2018-2020 | Harley-Davidson | FXBB Street Bob 107 | - | - |
| 2018-2019 | Harley-Davidson | FXFB Fat Bob 107 | - | - |
| 2018-2019 | Harley-Davidson | FXBR Breakout 107 | - | - |
| 2018-2019 | Harley-Davidson | FLFB Fat Boy 107 | - | - |
| 2016-2017 | Harley-Davidson | FLSS Softail Slim S | - | - |
| 2016-2017 | Harley-Davidson | FLSTFBS Fat Boy S | - | - |
| 2016-2017 | Harley-Davidson | FXDLS Low Rider S | - | - |
| 2016-2017 | Harley-Davidson | FXSE CVO Pro Street Breakout | - | - |
| 2014-2017 | Harley-Davidson | FXDL Low Rider | - | - |
| 2014-2015 | Harley-Davidson | FLSTNSE CVO Softail Deluxe | - | - |
| 2013-2017 | Harley-Davidson | FXSB Breakout | - | - |
| 2013-2014 | Harley-Davidson | FXSBSE CVO Breakout | - | - |
| 2012-2017 | Harley-Davidson | FLS Softail Slim | - | - |
| 2012-2016 | Harley-Davidson | FLD Switchback | - | - |
| 2012 | Harley-Davidson | FLSTSE3 CVO Softail Convertible | - | - |
| 2011-2013 | Harley-Davidson | FXS Blackline | - | - |
| 2011 | Harley-Davidson | FLSTSE2 CVO Softail Convertible | - | - |
| 2010-2017 | Harley-Davidson | FLSTFB Fat Boy Lo | - | - |
| 2010 | Harley-Davidson | FLSTSE CVO Softail Convertible | - | - |
| 2010 | Harley-Davidson | FXDFSE2 CVO Dyna Fat Bob | - | - |
| 2009 | Harley-Davidson | FXDFSE CVO Dyna Fat Bob | - | - |
| 2009 | Harley-Davidson | FXSTSSE3 CVO Softail Springer | - | - |
| 2009 | Harley-Davidson | Fat Boy Lo FLSTFB | - | - |
| 2008-2017 | Harley-Davidson | FXDF Fat Bob | - | - |
| 2008-2011 | Harley-Davidson | FXCWC Rocker C | - | - |
| 2008-2011 | Harley-Davidson | FLSTSB Cross Bones | - | - |
| 2008-2009 | Harley-Davidson | FXCW Rocker | - | - |
| 2008 | Harley-Davidson | FXSTSSE2 Screamin Eagle Softail Springer | - | - |
| 2008 | Harley-Davidson | FXDSE2 Screamin Eagle Dyna | - | - |
| 2007-2017 | Harley-Davidson | FLSTC Heritage Softail Classic | - | - |
| 2007-2017 | Harley-Davidson | FLSTF Fat Boy | - | - |
| 2007-2017 | Harley-Davidson | FLSTN Softail Deluxe | - | - |
| 2007-2014 | Harley-Davidson | FXDC Super Glide Custom | - | - |
| 2007-2010 | Harley-Davidson | FXSTC Softail Custom | - | - |
| 2007-2009, 2014-2017 | Harley-Davidson | FXDL Dyna Low Rider | - | - |
| 2007-2009 | Harley-Davidson | FXST Softail Standard | - | - |
| 2007-2009 | Harley-Davidson | FXSTB Night Train | - | - |
| 2007 | Harley-Davidson | FLSTSC Softail Springer Classic | - | - |
| 2007 | Harley-Davidson | FXDSE Screamin Eagle Dyna | - | - |
| 2007 | Harley-Davidson | FXSTSSE Screamin Eagle Softail Springer | - | - |
| 2007 | Harley-Davidson | FXSTD Softail Deuce | - | - |
| 2006-2017 | Harley-Davidson | FXDB Street Bob | - | - |
| 2006-2010 | Harley-Davidson | FXD Dyna Super Glide | - | - |
| 2006-2008, 2010-2017 | Harley-Davidson | FXDWG Dyna Wide Glide | - | - |
| 2006 | Harley-Davidson | FXDI35 Dyna 35th Anniversary Super Glide | - | - |
| 2006 | Harley-Davidson | FXDBI Street Bob | - | - |
| 2006 | Harley-Davidson | FXDCI Super Glide Custom | - | - |
| 2006 | Harley-Davidson | FXDI Dyna Super Glide | - | - |
| 2006 | Harley-Davidson | FXDLI Dyna Low Rider | - | - |
| 2006 | Harley-Davidson | FXDWGI Dyna Wide Glide | - | - |
| 2006 | Harley-Davidson | Low Rider FXDL | - | - |
| MPN | 560-0448 |