Progressive Suspension Series 444 Shock absorberRef : PRSU00049A / 13100808

Shock Absorber Series 444 by PROGRESSIVE SUSPENSION (manufacturer part no. 444-4062B): a unit designed for roadsters looking to enhance comfort and handling without complexity. Equipped with Frequency Sensing Technology (FST), it detects shocks and automatically adjusts the damping to better absorb road irregularities. The black body with an internal reservoir offers a discreet and polished look.

• Technology: FST (frequency detection) and deflector disc valve system.
• Adjustments: manually adjustable spring preload, no special tools required; progressive rate spring.
• Construction: high-pressure gas charge, made in the USA.
• Dimensions: extended length 279.40 mm (11.00").
• Finish: black, internal reservoir, standard function.

These shock absorbers are particularly suitable for machines that accept slightly longer or shorter components than the original, but caution: a different length may alter the rake angle and steering responsiveness. Before installation, check the travel and clearances (swingarm, exhaust, chain/belt guard, tyre). Recommended for intensive use on motorcycles frequently operating at or near maximum load (>50% of the time).

Application examples: several Harley-Davidson Sportster 1200 (Forty-Eight, Superlow) 2020. A relevant choice for the rider seeking a suspension ready to handle passenger, luggage, and varied roads.