FOX Street Performance Series Fork Cartridge Kit - 49mm STD Height/Spring Dyna — Harley-Davidson (2006-2017)

FOX Street Performance Series fork cartridge kit for 49mm standard-height forks on Dyna models, featuring speed-sensitive closed-cartridge damping and tuned linear spring rates. Drop-in upgrade that maintains your stock fork appearance while improving comfort and cornering control.

Features

• Speed-sensitive closed-cartridge damping control
• Model-specific ride tune for Dyna
• Linear spring rates reduce brake dive
• Fully rebuildable and re-valvable
• Works with existing 49mm fork tubes

Specifications

• Brand: FOX
• Manufacturer Part #: 890-27-008
• UPC: 711745590748
• Fork Diameter: 49mm
• Height: Standard
• Length: 28.81 in
• Width: 12.25 in
• Height: 4.87 in
• Weight: 8.5 lbs
• Country of Origin: China (Taiwan)

Fitment

Fits Harley-Davidson Dyna models with 49mm standard-height fork tubes.

Frequently Asked Questions

Will this fit my Dyna with aftermarket fork tubes?

This kit is designed for stock 49mm Dyna fork tubes. Verify your fork diameter and internals before ordering if you have modified suspension.

Do I need to replace the entire fork?

No — the cartridge kit works inside your existing fork tubes, maintaining the original appearance while upgrading damping and spring performance.

Can I adjust the ride after installation?

The cartridge is tuned for your specific model. FOX cartridges are rebuildable and re-valvable by a suspension specialist if you want custom tuning later.

What's the difference between this and the factory Dyna fork?

FOX's speed-sensitive damping and linear spring rates provide better control under braking and cornering compared to stock Dyna suspension.

Is professional installation required?

Fork cartridge installation requires removing the fork from the bike and opening the fork leg — this is a job for a qualified suspension shop or experienced mechanic.