After more than a decade of ruling the roads with their famous 440 Series shocks with IAS, Progressive Suspension has unveiled another breakthrough design! It is dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride.
Product Style | J&P Cycles Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
---|---|---|---|---|---|
Product Style Standard / 13 1/2" Long | J&P Cycles Item #1075839 | Catalog Number743-040 | Store Sku | MFR. Product #444-4074B | AvailabilityIn Stock: Ships within 24 hours |
Product Style Heavy Duty / 13 1/2" Long | J&P Cycles Item #1075838 | Catalog Number743-041 | Store Sku | MFR. Product #444-4073B | AvailabilityIn Stock: Ships within 24 hours |
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