# S&S Cycle 2017 M8 Models 4-1/2in Stroke Flywheel w/ Tapered Rods & Balancer Gear

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.

-   S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots and handle more power!
-   Heat Treated 4140 Material is harder & more than twice as strong as stock
-   Tapered wristpin connecting rods compatible with stock pistons
-   Stronger assembly eliminates need to weld crankpin
-   Capable of higher RPM - More available power!
-   Balanced for stock piston weight (1060g)
-   Consistent balance & precision machining
-   4-1/2" Stroke (114 or 128ci)
-   Perfect for Gear Drive Cams
-   Balance Gear installed

This Part Fits:

Year

Make

Model

Submodel

2018-2020

Harley-Davidson

FLDE Deluxe 107

Base

2018-2020

Harley-Davidson

FLFB Fat Boy 107

Base

2025-2026

Harley-Davidson

FLFB Fat Boy 117

Base

2018-2023

Harley-Davidson

FLFBS Fat Boy 114

Base

2021

Harley-Davidson

FLH Electra Glide Revival

Base

2018-2021

Harley-Davidson

FLHC Heritage Classic 107

Base

2026

Harley-Davidson

FLHC Heritage Classic 117

Base

2018-2024

Harley-Davidson

FLHCS Heritage Classic 114

Base

2023

Harley-Davidson

FLHFB Electra Glide Highway King

Base

2017-2022

Harley-Davidson

FLHR Road King

Base

2017-2019

Harley-Davidson

FLHRC Road King Classic

Base

2017-2025

Harley-Davidson

FLHRXS Road King Special

Base

2019-2022

Harley-Davidson

FLHT Electra Glide Standard

Base

2017-2019

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

2017-2025

Harley-Davidson

FLHTCUTG Tri Glide Ultra

Base

2022

Harley-Davidson

FLHTCUTG Tri Glide Ultra G.I.

Base

2020-2022

Harley-Davidson

FLHTCUTGSE CVO Tri Glide

Base

2017-2021

Harley-Davidson

FLHTKSE CVO Limited

Base

2017-2026

Harley-Davidson

FLHX Street Glide

Base

2017-2023

Harley-Davidson

FLHXS Street Glide Special

Base

2017-2026

Harley-Davidson

FLHXSE CVO Street Glide

Base

2022-2023

Harley-Davidson

FLHXST Street Glide ST

Base

2025

Harley-Davidson

FLHXU Street Glide Ultra

Base

2024

Harley-Davidson

FLI Hydra-Glide Revival

Base

2017-2025

Harley-Davidson

FLRT Freewheeler

Base

2018-2024

Harley-Davidson

FLSB Sport Glide 107

Base

2018-2021

Harley-Davidson

FLSL Softail Slim 107

Base

2017

Harley-Davidson

FLSTC Heritage Softail Classic

Base

2025

Harley-Davidson

FLSTFI Fat Boy Gray Ghost

Base

2020-2024

Harley-Davidson

FLTRK Road Glide Limited

Base

2022

Harley-Davidson

FLTRKSE CVO Road Glide Limited

Base

2024-2026

Harley-Davidson

FLTRT Road Glide 3

Base

2017-2019

Harley-Davidson

FLTRU Road Glide Ultra

Base

2017-2026

Harley-Davidson

FLTRX Road Glide

Base

2025

Harley-Davidson

FLTRXRRSE CVO Road Glide RR

Base

2017-2023

Harley-Davidson

FLTRXS Road Glide Special

Base

2018-2025

Harley-Davidson

FLTRXSE CVO Road Glide

Base

2022-2023

Harley-Davidson

FLTRXST Road Glide ST

Base

2025-2026

Harley-Davidson

FLTRXSTSE CVO Road Glide ST

Base

2018-2020

Harley-Davidson

FXBB Street Bob 107

Base

2025-2026

Harley-Davidson

FXBB Street Bob 117

Base

2021-2024

Harley-Davidson

FXBBS Street Bob 114

Base

2018-2019

Harley-Davidson

FXBR Breakout 107

Base

2024-2026

Harley-Davidson

FXBR Breakout 117

Base

2018-2020

Harley-Davidson

FXBRS Breakout 114

Base

2019-2020

Harley-Davidson

FXDRS FXDR 114

Base

2018-2020

Harley-Davidson

FXFB Fat Bob 107

Base

2018-2023

Harley-Davidson

FXFBS Fat Bob 114

Base

2018-2020

Harley-Davidson

FXLR Low Rider 107

Base

2020-2021

Harley-Davidson

FXLRS Low Rider S 114

Base

2022-2026

Harley-Davidson

FXLRS Low Rider S 117

Base

2022-2026

Harley-Davidson

FXLRST Low Rider ST 117

Base

2022

Harley-Davidson

FXRST Low Rider El Diablo 117

Base

2020-2024

Harley-Davidson

FXST Softail Standard 107

Base

## Details

- **Price:** 2855.08 CAD
- **Vendor:** S&S Cycle
- **Type:** Flywheels

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2855.08 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-2017-m8-models-4-1-2in-stroke-flywheel-w-tapered-rods-balancer-gear)
> Updated: 2026-07-13