Progressive 990 Shocks — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

Progressive 990 Sport series shock offers complete trackside adjustability for Harley-Davidson rear suspension. Features high-pressure monotube design with deflective disc damping, plus independent knobs for high/low-speed compression, rebound damping, preload, and ride height to dial in handling and comfort without tools.

Features

• Adjustable High & Low Speed compression damping
• Adjustable rebound damping
• Threaded hand-adjustable preload
• 0.4 in adjustable height eyelet
• High-pressure gas monotube with deflective disc damping
• Lightweight aluminum body
• Linear rate coil spring
• Captured jounce bumper

Specifications

• Brand: Progressive
• Manufacturer Part #: 990-2003
• Weight: 10.7 lb
• Category: Suspension / Shocks and Struts
• Fitment: Harley-Davidson
• WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov

Fitment

Fits Harley-Davidson models. Check fitment with Progressive or your dealer for your specific year and model, as shock compatibility varies by frame and swingarm type.

Frequently Asked Questions

Can I adjust these shocks without removing them from the bike?

Yes. The compression, rebound, and preload knobs are hand-adjustable while installed. Height adjustment requires removing the shock to modify the eyelet.

How much can I change the ride height?

The adjustable eyelet provides 0.4 inches of ride height adjustment, allowing you to lower or raise the rear end for stance or cornering clearance.

Do these require a special tool to adjust?

No. All damping, preload, and height adjustments are hand-accessible via knobs and threaded eyelet — no special tools needed.

Will these fit my specific Harley model?

Progressive shocks fit most Harley-Davidson models, but fitment varies by year and frame type. Confirm your model year before ordering.

What does the high-pressure monotube design do?

The high-pressure gas helps prevent aeration and fade during hard riding, while deflective disc damping delivers consistent feel throughout the shock stroke for stable handling.

California Proposition 65 Warning

WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov