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Mosport Machine

Sportster Billet Swing Arm (2004–2022 Rubber Mount)

Sportster Billet Swing Arm (2004–2022 Rubber Mount)

Regular price $2,000.00
Regular price Sale price $2,000.00
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Take your Harley Sportster to the next level with a precision CNC-machined billet swing arm engineered for maximum strength, stability, and performance. Designed specifically for 2004–2022 rubber mount Sportsters, this swing arm has been rigorously tested for over a year under real-world abuse—on the street, in stunt applications, and in full custom builds.

Built with premium materials and a bolt-together design, this swing arm delivers unmatched durability, clean aesthetics, and improved rear-end performance over factory components.

  • CNC machined from 6061 billet aluminum
  • Includes 4130 chromoly axle (25mm diameter) for superior strength
  • Heavy-duty ARP hardware throughout
  • Grade 8 tensioner hardware included
  • Uses stock spherical bearings
  • 3 shock mounting positions (middle = stock location)
  • Designed for newer style rear brake caliper
  • Axle spacers included
  • Made and manufactured in the USA using USA materials

Unlike cast or OEM swing arms, this billet design provides increased rigidity and improved handling under load. Whether you're pushing your bike hard on the street, building a stunt machine, or creating a show-quality setup, this swing arm is built to perform and stand out.

  • Harley Davidson Sportster (Rubber Mount Models)
  • Years: 2004–2022
  • Material: 6061 Billet Aluminum
  • Axle: 4130 Chromoly, 25mm
  • Hardware: ARP + Grade 8 Components
  • Shock Mounts: 3 Positions
  • Brake Compatibility: New Style Caliper
  • Rotor Options: 10.25" or 11.5" (select when ordering)
  • Engineered as a direct bolt-on fit, but setup may vary by build
  • Shock mount bolts require 1/2-20 thread bolts (not included)
  • Caliper bolts are included
  • Proper alignment is critical for performance and safety
  • Professional installation is recommended
  • This is an aftermarket swing arm, not an OEM replacement
  • Additional parts or minor modifications may be required depending on your setup

Built to order.
Estimated lead time: ~3 weeks (excluding shipping)

Custom finishes and colors are available upon request. Contact us to discuss your build.

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