Sportster Billet Swing Arm (1999–2003 Solid Mount)

Upgrade your 1999–2003 Harley Sportster with a CNC billet swing arm. Built for strength, performance, and aggressive riding. Made in the USA.

Upgrade your Harley Sportster with a precision CNC-machined billet swing arm designed for maximum strength, performance, and aggressive riding styles. Engineered and torture-tested for over a year, this swing arm is built to handle everything from street riding and stunt applications to full show builds.

Unlike cast or OEM alternatives, this Mosport Machine billet swing arm delivers superior rigidity, durability, and a clean custom look that stands out on any build.

• CNC machined from 6061 billet aluminum
• Designed specifically for 1999–2003 Harley Sportster (Solid Mount)
• Tested under extreme riding conditions for over a year
• No welding required – precision bolt-together design
• Includes ARP hardware for maximum strength
• Grade 8 tensioner hardware included
• 3 shock mounting positions (center = stock location)
• Compatible with stock axle, bearings, bushings, and pivot bolt
• Axle spacers included
• Designed and manufactured in the USA using USA materials

Built for riders who demand more from their machine, this billet swing arm offers increased rigidity and improved rear-end stability compared to factory components. Whether you're pushing limits on the street, building a stunt bike, or dialing in a show-quality Sportster, this setup delivers both performance and style.

• Harley Davidson Sportster (Solid Mount Models)
• Years: 1999–2003

• Material: 6061 Billet Aluminum
• Hardware: ARP Bolts + Grade 8 Tensioners
• Shock Mounts: 3 Positions
• Finish: Raw (custom finishes available upon request)

• Utilizes stock axle (not included)
• Uses stock bearings, bushings, and pivot bolt (included)
• Shock mount bolts require 1/2-20 thread bolts (not included)
• This is an aftermarket swing arm, not a direct OEM replacement
• Additional modifications or parts may be required depending on setup
• Professional installation recommended

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

Looking for a custom finish or color? Contact us directly to discuss available options.