# S&S Cycle 2017 M8 Models 4-5/8in Stroke Flywheel w/ Full Width 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
-   Full width wristpin connecting rods (requires S&S Performance Pistons)
-   Stronger assembly eliminates need to weld crankpin
-   Balanced for S&S Performance piston weight (1213g)
-   Capable of higher RPM - More available power!
-   Consistent balance & precision machining
-   4-5/8" Stroke - Use S&S 131 Kits
-   Perfect for Gear Drive Cams
-   Balance Gear installed

This Part Fits:

Year

Make

Model

Submodel

2018-2020

Harley-Davidson

FLDE Deluxe 107

Base

2018-2021

Harley-Davidson

FLFBS Fat Boy 114

Base

2018-2021

Harley-Davidson

FLHCS Heritage Classic 114

Base

2017-2021

Harley-Davidson

FLHR Road King

Base

2017-2021

Harley-Davidson

FLHRXS Road King Special

Base

2019-2021

Harley-Davidson

FLHT Electra Glide Standard

Base

2017-2019

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

2020-2021

Harley-Davidson

FLHTCUTGSE CVO Tri Glide

Base

2017-2021

Harley-Davidson

FLHTK Ultra Limited

Base

2017-2019

Harley-Davidson

FLHTKL Ultra Limited Low

Base

2017-2021

Harley-Davidson

FLHTKSE CVO Limited

Base

2017-2021

Harley-Davidson

FLHX Street Glide

Base

2017-2021

Harley-Davidson

FLHXS Street Glide Special

Base

2017-2021

Harley-Davidson

FLHXSE CVO Street Glide

Base

2017-2021

Harley-Davidson

FLRT Freewheeler

Base

2020-2021

Harley-Davidson

FLTRK Road Glide Limited

Base

2017-2019

Harley-Davidson

FLTRU Road Glide Ultra

Base

2017-2021

Harley-Davidson

FLTRX Road Glide

Base

2017-2021

Harley-Davidson

FLTRXS Road Glide Special

Base

2018-2020

Harley-Davidson

FXBRS Breakout 114

Base

2019-2020

Harley-Davidson

FXDRS FXDR 114

Base

2018-2021

Harley-Davidson

FXFBS Fat Bob 114

Base

2020

Harley-Davidson

FXLRS Low Rider S 114

Base

## Details

- **Price:** 2780.94 CAD
- **Vendor:** S&S Cycle
- **Type:** Flywheels

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2780.94 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-2017-m8-models-4-5-8in-stroke-flywheel-w-full-width-rods-balancer-gear)
> Updated: 2026-07-01