Progressive Rate fork springs engineered to soak up small road bumps while remaining firm enough for larger impacts, reducing front-end dive during braking without sacrificing ride comfort. Precision-wound construction tuned specifically for Harley-Davidson applications.
Features
- Progressive rate spring design
- Reduces front-end dive during braking
- Precision wound for consistent performance
- Lifetime manufacturer warranty
- Available in Standard and Heavy Duty versions for select applications
Specifications
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Brand: Progressive
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Manufacturer Part #: 11-1154
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Category: Suspension / Fork Springs
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Weight: 3.25 lb
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WARNING: California Prop 65 — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson models. Verify your specific year and model before ordering, as Progressive offers different spring rates and HD/Standard versions across the Harley lineup.
Frequently Asked Questions
What's the difference between Heavy Duty and Standard versions?
Heavy Duty springs are stiffer for riders carrying extra weight or luggage. Standard springs suit lighter loads. Check your model to see which versions are available.
Will these reduce the harsh front-end dive when I brake hard?
Yes. Progressive rates are engineered to firm up under load, so they resist compression more as braking force increases, keeping the front end higher.
Do I need new fork oil or seals?
Fork springs alone do not require oil or seal replacement. If your forks are leaking or the oil is dirty, service those separately.
How long does installation take?
Allow 1–2 hours per side if you're experienced with fork work. Spring replacement requires removing the fork from the bike and compressing the spring to swap it — consider professional installation if unsure.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
