Progressive Suspension Cartridge fork springs for Harley-Davidson with 41mm fork These are the 1-2" deeper fork springs. The lowering is optionally done by 1-2" Spring rate and damping are preset. The preload can be changed by using less or additional spring seat distances. This symmetrical monotube fork spring kit from Progressive Suspension requires no modifications to the fork but provides true performance front suspension with improved cornering stability and better road holding. The kit features a set of gas-filled Monotube damper cartridges and a set of specially tuned fork springs. It is supplied as a complete replacement kit, including all internal fork components apart from fork tubes and oil. We carry many other items from the tuning brand Progressive Suspension, such as various.
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