Seller notes

Progressive 444-4245B 444 Series Shocks Dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride. The result is superior performance no matter the road conditions. A top mount threaded preload adjuster allows for fine tuning with a simple twist of the cap. Uses FST; allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality Deflective disc valving Special tools no longer needed to adjust, spring ...

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