444 Series Shock Absorbers for Harley Davidson

With Frequency Sensing Technology (FST) that allows the shock absorbers to detect the frequency of impacts and automatically adjust damping for improved ride quality.
Concentric spring disc valve
Spring preload adjustment, no special tools required
They include a high-pressure gas-charged progressive-pitch spring to deliver consistent performance.
Slightly longer shocks than stock can alter the fork's rake angle and offer slightly quicker handling.
Shock absorbers that are slightly shorter than stock can alter the fork angle and offer slightly slower handling.
Before purchasing or attempting to install shocks with different OEM lengths, confirm that the total suspension travel can be altered without causing clearance issues such as swingarm/axle to exhaust contact and also chain/pr
Heavy-duty applications are recommended for motorcycles that are used at or near maximum load capacity more than 50% of the time.
Made in the USA
PROGRESSIVE SUSPENSION 444-4062B