Progressive Suspension 990-1004 990 Sport Series Piggyback Reservoir Shock 13 Inch Standard

The Progressive Suspension 990-1004 represents the most adjustable shock available in the V-Twin motorcycle market. This 13-inch standard duty shock features a piggyback reservoir design with comprehensive adjustability to fine-tune your suspension for optimal performance and comfort.

Advanced Adjustability Features:

• 0.4-inch adjustable height eyelet for precise ride height control
• High and low speed compression damping adjustment via easily accessible knobs
• Rebound damping adjustment for customized shock return rates
• Threaded hand-adjustable spring preload for quick tuning

Premium Construction and Technology:

• High-pressure monotube design with deflective disc damping technology
• Dual circuit damping system delivers consistent feel throughout the damper stroke
• Lightweight aluminum body construction
• Linear rate coil spring for predictable suspension action
• Standard and spherical bearing mounts included
• Engineered jounce bumper with captured design to smooth and control bottoming

Every 990 Series shock is meticulously hand-built, tuned, and dyno tested at Progressive Suspension's facility. Engineered specifically for aggressive sport-inspired riders who demand excellence from their V-Twin motorcycle suspension. Backed by Progressive Suspension's Limited Lifetime Warranty.