The flywheels are the heart of any performance engine and S&S Cycle has been perfecting
the art for over six decades. Stronger, more durable, and trued to a spec others can only
dream of, the new cranks for the Milwaukee-Eight® platform are the best of the best to
build your high performance engine around.
FEATURES & BENEFITS4-3/8" Stroke (107 or 124ci)Balance Gear installedHeat Treated 4140 Material is harder & more than twice as strong as stockStronger assembly eliminates need to weld crankpinCapable of higher RPM - More available power!S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots and handle more power!Full width wristpin connecting rods (requires S&S Performance Pistons)Balanced for S&S Performance piston weight (1213g)Perfect for Gear Drive CamsConsistent balance & precision machiningCapable of higher RPM – More available power!
Fitment
| Year(s) | Make | Model Code | Model |
|---|---|---|---|
| 2017-2028 | Harley-Davidson | — | M8 Models |
| Year | Make | Model |
|---|---|---|
| 2018 | Harley-Davidson | FLDE Deluxe 107 |
| 2018 | Harley-Davidson | FLFB Fat Boy 107 |
| 2018 | Harley-Davidson | FLHC Heritage Classic 107 |
| 2018 | Harley-Davidson | FLSB Sport Glide 107 |
| 2018 | Harley-Davidson | FLSL Softail Slim 107 |
| 2018 | Harley-Davidson | FXBB Street Bob 107 |
| 2018 | Harley-Davidson | FXBR Breakout 107 |
| 2018 | Harley-Davidson | FXFB Fat Bob 107 |
| 2018 | Harley-Davidson | FXLR Low Rider 107 |
| 2019 | Harley-Davidson | FLDE Deluxe 107 |
| 2019 | Harley-Davidson | FLFB Fat Boy 107 |
| 2019 | Harley-Davidson | FLHC Heritage Classic 107 |
| 2019 | Harley-Davidson | FLSB Sport Glide 107 |
| 2019 | Harley-Davidson | FLSL Softail Slim 107 |
| 2019 | Harley-Davidson | FXBB Street Bob 107 |
| 2019 | Harley-Davidson | FXBR Breakout 107 |
| 2019 | Harley-Davidson | FXFB Fat Bob 107 |
| 2019 | Harley-Davidson | FXLR Low Rider 107 |
| 2020 | Harley-Davidson | FLDE Deluxe 107 |
| 2020 | Harley-Davidson | FLHC Heritage Classic 107 |
| 2020 | Harley-Davidson | FLSB Sport Glide 107 |
| 2020 | Harley-Davidson | FLSL Softail Slim 107 |
| 2020 | Harley-Davidson | FXBB Street Bob 107 |
| 2020 | Harley-Davidson | FXLR Low Rider 107 |
| 2020 | Harley-Davidson | FXST Softail Standard 107 |
| 2021 | Harley-Davidson | FLHC Heritage Classic 107 |
| 2021 | Harley-Davidson | FLSB Sport Glide 107 |
| 2021 | Harley-Davidson | FLSL Softail Slim 107 |
| 2021 | Harley-Davidson | FXST Softail Standard 107 |
| 2022 | Harley-Davidson | FXST Softail Standard 107 |
| 2023 | Harley-Davidson | FXST Softail Standard 107 |
Fitment details provided by supplier.
