Progressive Suspensions 990 Sport Series Piggyback Reservoir Shocks for Dyna Models

These shocks feature easily accessible adjustment knobs for high-speed and low-speed compression damping, along with a 0.4” adjustable height eyelet for precise tuning. They are built with a high-pressure gas monotube, a captured jounce bumper for smooth and controlled bottoming, a piggyback reservoir, deflective disc damping, an aluminum body, and a linear rate coil spring, providing reliable performance in a variety of conditions. Made in the USA, all shocks are measured center-to-center of the eyelets. Shocks slightly longer than stock may alter the head angle for somewhat quicker steering, while shocks slightly shorter than stock may slightly slow steering response. Note: Before purchasing or installing shocks that differ from OEM length, confirm that wheel travel can be adjusted without causing clearance issues, including potential contact between the swingarm or axle and the exhaust, chain or belt guard, or tire.

• Easily accessible adjustment knobs for high-speed and low-speed compression damping
• 0.4” adjustable height eyelet
• High-pressure gas monotube
• Captured designed jounce bumper for smooth and controlled bottoming
• Piggybacking reservoir
• Deflective disc damping
• Aluminum body
• Linear rate coil spring
• Made in the USA
• Notes
  • All shocks are measured center-of-eyelet to center-of-eyelet.
  • A shock which is slightly longer than stock may alter the head angle slightly and provide somewhat quicker steering.
  • A shock which is slightly shorter than stock may alter the head angle slightly and provide somewhat slower steering.
  • Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.