Arnott MC-3104 Suspension Kit - Rear

Arnott Smooth Ride Air Suspension Kit

The Arnott MC-3104 is a Smooth Ride Series adjustable motorcycle air suspension kit for the 2008-2017 Harley-Davidson Dyna. It combines rear ride-height control with a sporty, controlled feel, making it a practical choice for riders who want easier footing at stops and adjustable stance while parked.

Built around custom-valved 13-inch nitrogen-charged mono-tube shocks with an internal floating piston, this kit is engineered to reduce oil foaming and cavitation for more consistent damping. The onboard compressor, toggle switch, and air distribution valve block let you raise or lower the rear suspension to suit rider weight, road conditions, and parking needs.

Key Features

• Adjustable rear air suspension for 2008-2017 Harley-Davidson Dyna models
• Over 3 inches of travel for ride-height adjustment and stance control
• 13-inch nitrogen-charged mono-tube shocks with IFP design
• Goodyear air spring for height tuning based on load and riding preference
• Onboard compressor and switch for quick adjustment at a stop
• Valve block includes a muffler to control air release speed

Detailed Description

Arnott Smooth Ride Series part MC-3104 is built for riders who want direct control over rear suspension height on a Harley-Davidson Dyna. The system uses a compact compressor, custom mounting bracket, and air management components to let you adjust the bike for flat-footed stops, parking, and changing road conditions. The MC-3104 also supports a lower parked stance without giving up the ability to raise the bike for riding clearance.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Difficulty reaching the ground at stops on a Harley-Davidson Dyna
• Need for quick rear ride-height changes while parked or maneuvering
• Rear suspension setup that needs adjustment for rider size or load
• Harsh or inconsistent rear shock response from oil foaming and cavitation
• Desire for a lower stance without permanently changing suspension geometry

Installation Notes and Tips

MC-3104 includes the components needed for installation, along with a user manual, fused wiring harness, relay assembly, tubing, cable ties, fittings, bolt covers, protective aluminum covers, and mounting accessories. Follow the supplied instructions carefully, verify routing before final tightening, and confirm compressor and switch operation before road use.

Quality Assurance

Each shock is custom-crafted and rigorously tested in Arnott’s Florida manufacturing facility. Arnott backs the MC-3104 with a Limited Lifetime Warranty.