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 11 1/2" / Black | J&P Cycles Item #899785 | Catalog Number504-520 | Store Sku | MFR. Product #444-4052B | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Standard 11 1/2" / Chrome | J&P Cycles Item #899786 | Catalog Number504-521 | Store Sku | MFR. Product #444-4052C | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Standard 12" / Black | J&P Cycles Item #899769 | Catalog Number504-504 | Store Sku | MFR. Product #444-4036B | AvailabilityIn Stock: Ships within 24 hours |
Product Style Standard 12" / Chrome | J&P Cycles Item #899770 | Catalog Number504-505 | Store Sku | MFR. Product #444-4036C | AvailabilityIn Stock: Ships within 24 hours |
Product Style Standard 12 1/2" / Black | J&P Cycles Item #899771 | Catalog Number504-506 | Store Sku | MFR. Product #444-4038B | AvailabilityIn Stock: Ships within 24 hours |
Product Style Standard 12 1/2" / Chrome | J&P Cycles Item #899772 | Catalog Number504-507 | Store Sku | MFR. Product #444-4038C | AvailabilityIn Stock: Ships within 24 hours |
Product Style Standard 13" / Black | J&P Cycles Item #899773 | Catalog Number504-508 | Store Sku | MFR. Product #444-4039B | AvailabilityIn Stock: Ships within 24 hours |
Product Style Standard 13" / Chrome | J&P Cycles Item #899774 | Catalog Number504-509 | Store Sku | MFR. Product #444-4039C | AvailabilityIn Stock: Ships within 24 hours |
Product Style Black / Heavy Duty 11 1/2" | J&P Cycles Item #899787 | Catalog Number504-522 | Store Sku | MFR. Product #444-4053B | AvailabilityCloseout: This product is no longer available |
Product Style Heavy Duty 11 1/2" / Chrome | J&P Cycles Item #899788 | Catalog Number504-523 | Store Sku | MFR. Product #444-4053C | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Black / Heavy Duty 12" | J&P Cycles Item #899775 | Catalog Number504-510 | Store Sku | MFR. Product #444-4044B | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Heavy Duty 12" / Chrome | J&P Cycles Item #899776 | Catalog Number504-511 | Store Sku | MFR. Product #444-4044C | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Black / Heavy Duty 12 1/2" | J&P Cycles Item #899777 | Catalog Number504-512 | Store Sku299445 | MFR. Product #444-4048B | AvailabilityIn Stock: Ships within 24 hours |
Product Style Heavy Duty 12 1/2" / Chrome | J&P Cycles Item #899778 | Catalog Number504-513 | Store Sku | MFR. Product #444-4048C | AvailabilityOnly 1 Left: Ships within 24 hours |
Product Style Black / Heavy Duty 13" | J&P Cycles Item #899783 | Catalog Number504-518 | Store Sku | MFR. Product #444-4051B | AvailabilityIn Stock: Ships within 24 hours |
Product Style Heavy Duty 13" / Chrome | J&P Cycles Item #899784 | Catalog Number504-519 | Store Sku | MFR. Product #444-4051C | AvailabilityOnly 2 Left: Ships within 24 hours |
How to Install Rear Shocks on a Harley-Davidson by J&P Cycles
The Indian Larry Twisted Frame Chopper | J&P Custom Motorcycle Builds
150-Horsepower Harley-Davidson | J&P: Custom Motorcycle Builds
124 Cubic Inch Twin Cam FXR | J&P: Custom Motorcycle Builds
The First 8 Things You Should Change When Buying a Harley Davidson