Model 440 I.A.S. Shocks by Progressive Suspension
I.A.S. means Inertia Active System. This leading edge system allows the shock to respond better to sudden movements of the rear wheel without transferring the jolts to the rider. The special inertia valve determines whether the soft (wheel) circuit or hard (chassis) circuit is used. All three circuits, compression as well as soft and firm rebound, are velocity sensitive.
Shock selection should be based on intended use. "Heavy Duty" applications are recommended for bikes with additional add-on accessories, rider weight over 200 pounds, or passenger use over 50% of the time. All measurements are eye-to-eye. Sold in pairs
Available in Black or polished aluminum finishes.
Available in 11", 11.5", 12", 12.5", 13", 13.5" lengths to fit FXR, Sportster, Dyna, FLT models, and V-Rod.
Prices starting at $359.95 for black and $423.95 for aluminum
Please call our toll-free number for fitment, length, and specific prices.
Cyborg Cycles
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