Progressive Suspension Part Number 440-4061b Reviews: A Detailed Look at This Rear Shock

The Progressive Suspension 440-4061b is a premium rear shock absorber designed for select Harley-Davidson touring models. This part number refers to a specific shock configuration that balances comfort and control for long-distance riding. In this article, we explore the key features, fitment, ride quality, and installation notes to help you decide if this shock is right for your bike.

Overview of the 440-4061b

The 440-4061b is part of Progressive Suspension’s 440 series, known for its monotube design and adjustable damping. This particular variant is built for the rear of Harley-Davidson Electra Glide, Street Glide, Road King, and Road Glide models from specific years. It replaces the stock shock to improve handling, reduce bottoming out, and provide a more controlled ride.

Key features include:

• Monotube construction for consistent damping performance and heat dissipation.
• Adjustable spring preload via a hydraulic adjuster, allowing you to dial in sag for rider and passenger weight.
• Adjustable rebound damping with 20 clicks of adjustment to fine-tune the shock’s return speed.
• Progressive rate spring that offers a softer initial stroke for comfort and increased resistance as the shock compresses to prevent harsh bottoming.
• Corrosion-resistant finish with a black powder coating and chrome-plated shaft.

Fitment and Compatibility

Before purchasing, confirm that the 440-4061b fits your specific motorcycle model and year. This shock is designed for:

• 1995-2013 Harley-Davidson Electra Glide (all sub-models)
• 1995-2013 Harley-Davidson Street Glide (except some CVO)
• 1995-2013 Harley-Davidson Road King (including Classic and Custom)
• 1995-2013 Harley-Davidson Road Glide (including Custom and Ultra)

It comes with necessary mounting hardware and is a direct bolt-on replacement for the stock shock. The eyelet dimensions and length match original equipment specifications, so no modifications are needed. However, always double-check your bike’s year and model – newer touring bikes (2014+) use a different shock length and mounting style.

Performance and Ride Quality

Riders report a noticeable improvement over stock shocks. The monotube design reduces fade during hard riding or in hot weather, maintaining consistent damping. The adjustable rebound damping allows you to match the shock’s behavior to your riding style and load.

• Comfort: The progressive spring soaks up small bumps and expansion joints smoothly, while the firmer mid-stroke control keeps the rear end stable during cornering.
• Load support: Even with a passenger and luggage, the shock resists sagging and bottoming out. The hydraulic preload adjuster makes it easy to add spring tension without tools.
• Handling: The shock reduces wallowing and improves traction, especially when leaning into turns. The rebound adjustment helps control the chassis on undulating roads.

One limitation: adjustment range. Some riders with heavy loads (over 400 lbs) may find the spring rate slightly soft, requiring near-maximum preload. Progressive Suspension offers heavier springs separately if needed.

Installation Considerations

Installing the 440-4061b is straightforward for anyone with basic mechanical skills. Typical steps:

1. Support the motorcycle securely on a lift or jack under the frame, not the swingarm.
2. Remove the lower mounting bolt and the upper bolt. Note that the upper mount may require removing the side cover or rear fender support on some models.
3. Compress the shock slightly to slide out.
4. Install the new shock with included bushings and washers. Torque bolts to factory specifications.
5. Adjust preload: turn the hydraulic adjuster knob clockwise to increase preload. Set sag (rider on bike) around 25-30% of total travel.
6. Set rebound damping to a middle setting (10 clicks from full soft) and fine-tune based on ride feel.

If you are uncomfortable working on suspension, a professional installation is recommended. Expect 1-2 hours labor.

How It Compares to Other Options

The 440-4061b sits in the middle of Progressive Suspension’s lineup. For a lower-cost alternative, the 412 series offers non-adjustable damping but still improves over stock. For more adjustability, the 444 series includes remote reservoir and compression damping adjustment at a higher price.

When compared to brands like Öhlins or Fox, the Progressive is more affordable and easier to set up. It delivers 80-90% of the performance at a lower cost, making it a popular choice for touring riders who want a reliable upgrade without breaking the bank.

Final Recommendation

If you ride a compatible Harley-Davidson touring model and find the stock suspension lacking in comfort or control, the Progressive Suspension 440-4061b is a solid investment. It offers noticeable improvements in ride quality, adjustability, and load carrying ability. The shock is easy to install and tune, and its durability is well-regarded among the touring community.

For most riders, the 440-4061b hits the sweet spot between performance and value. Heavier riders or those who frequently carry maximum loads may want to consider a shock with a heavier spring or additional damping adjustments. Overall, this shock transforms the touring experience without requiring major modifications.