Description
If your motorcycle’s front end feels soft, wallows under braking, or dives excessively, your fork springs are likely the culprit. The Progressive Suspension Heavy-Duty Fork Spring Kit delivers a substantial upgrade in ride quality and stability without requiring a full fork rebuild—making it the cost-effective solution for heavier riders or those who demand a firmer, more controlled feel on track or street.
This kit combines Progressive Suspension rate springs with preload spacers to improve front-end stability, reduce brake dive, and enhance overall chassis control. Whether you’re looking to dial in better handling characteristics or simply need a more responsive fork setup, these springs will transform how your bike performs under acceleration and deceleration.
- 39 mm fork diameter
- Heavy-duty spring rates
- Includes preload spacers
- Bolt-on installation
- Improves brake dive control
- Enhances front-end stability
- Progressive Suspension OEM quality
- MPN: 11-1552
- Ideal for heavier riders
- High-performance rated






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