Harley Davidson Swingarms

Billet Series Road Glide "Speedway" Swingarms

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Now Through July 7th Get 15% Off All Swingarms! Email: tracdynamicsinc@gmail.com or Text 661-478-2318 To Get The Code And Place Your Order!

Billet Series Road Glide "Speedway" Swingarms

New! Speedway swingarm. Made from new larger material to give you superior strength and a BOLD look on your bike. Angled axle adjuster slot allows for consistent ride height settings when making wheelbase or gearing changes. Engineered pocket machining provides substantial weight savings. These are just some of the features that make the new Speedway one of our best arms ever!

Our ALL NEW Billet Series swingarms feature one piece CNC machined sides custom designed to give you great looks and superior strength! Extensive pocketing gets the weight down to a minimum making these arms a full 10lbs lighter than the stock factory swingarm. Billet Series arms also include our AXS (axle interchange system) axle adjusters that are manufactured "in house" and made from super hard 7075-T7 aluminum. Our exclusive design allows you to change axle diameters in the future without having to purchase a whole new swingarm.

*Arms fit Road-Glide/Road-King/Street-Glide models.

Available finishes:

  • Bare/Factory finish.
  • Black Powdercoat.
  • Gold Anodize
Product Info:
  • 02 and later models can use with stock caliper.
  • Older models must use aftermarket caliper and hanger.
  • Arms are available with 3/4 or 1" or 25mm axle.
  • 95-01 arms come with spherical pivot bearing kit.


PLEASE NOTE: All Trac Dynamics swingarms are manufactured entirely in the United States and due to the wide variety of arms we make, they are all made to order. Production times can range from 5 to 12 weeks and depend on the model, style and finish of the arm. Please feel free to call if you have a special project or unavoidable deadline, we will see what we can do or what we can offer you.


For a special project, Width, or length, please call 661-295-1956. 

95-01 Road Glide swingarms require the use on an after-market brake caliper and hanger. You can source your own set-up or purchase our PM brake kit below.

CLICK HERE to purchase brake kit  


Need to upgrade your suspension? ClickHere for shocks and fork springs!


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