S&S Cycle 2017 M8 Models 4-1/2in 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.

• 4-1/2" Stroke (114 or 128ci)
• Balance Gear installed
• Balanced for S&S Performance piston weight (1213g)
• Capable of higher RPM - More available power!
• Consistent balance & precision machining
• Full width wristpin connecting rods (requires S&S Performance Pistons)
• Heat Treated 4140 Material is harder & more than twice as strong as stock
• Perfect for Gear Drive Cams
• S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots and handle more power!
• Stronger assembly eliminates need to weld crankpin

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information