Progressive Fork Springs - Progressive Rate - Harley-Davidson
About Progressive
Progressive Suspension has focused exclusively on American V-twin suspension since 1982, and its Monotube fork cartridges and 400/970/970G shock series are among the most common upgrades on baggers and Softails. For most riders the stock rear shock is the single worst part on the bike — this is the fix.
Enhance your Harley-Davidson's front suspension with Progressive Fork Springs. These precision-wound springs feature a progressive rate, designed to smoothly absorb small road imperfections while providing firm support to prevent excessive front-end dive during braking and handle larger impacts with confidence.
Why riders pick this
- Progressive rate design for dynamic suspension response
- Reduces front-end dive during braking
- Precision wound construction for reliability
- Absorbs small bumps and handles larger impacts
- Comes with a lifetime manufacturer's warranty
Progressive Rate fork springs are a critical upgrade for any Harley-Davidson owner looking to improve their bike's handling and ride comfort. Unlike linear springs, the progressive design allows for a softer initial compression to soak up minor road chatter, then gradually stiffens as the fork compresses further. This dual-action performance translates to a smoother ride on varied surfaces and significantly better control during hard braking and cornering.
Optimized Ride Dynamics
- Progressive rate spring design adapts to varying road conditions
- Reduces front-end dive during hard braking for improved stability
- Precision wound construction ensures consistent performance and durability
- Engineered to absorb small road bumps while handling larger impacts
- Backed by a lifetime manufacturer's warranty
A Foundation for Better Handling
Installing Progressive Rate fork springs is one of the most effective ways to improve the feel and responsiveness of your Harley-Davidson's front end. This upgrade helps maintain proper geometry under braking, giving you more confidence and control. Whether you're navigating city streets or carving canyons, these springs provide the consistent support needed for a superior riding experience. Professional installation is recommended to ensure optimal performance and safety.
Specifications
- Brand: Progressive
- Manufacturer Part #: 11-1549
- Weight: 3.25 lb
- Category: Suspension / Fork Springs
- WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Common questions
What's the difference between Progressive Rate and standard springs?
Progressive Rate springs start soft to soak up small bumps, then firm up under load for better control during hard braking or cornering, unlike standard linear springs.
Do these reduce front-end dive when I brake hard?
Yes — these springs are specifically tuned to minimize front-end squat during hard braking while maintaining ride comfort on smooth roads.
Is installation difficult for these fork springs?
Replacing fork springs typically requires basic mechanical knowledge and specialized tools. For best results, professional installation is recommended.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Progressive |
| TYPE | Fork Springs |
| SKU | T14-669301 |
| WEIGHT | 3.25 lb |
