BBR Motorsports Rear Shock Spring (Red / 392 lb/in) 660-HXR-5005 - Honda CRF50F / XR50R / Suzuki DR-Z50

Product Description

If you are an adult rider or aggressive pit bike enthusiast bottoming out factory rear suspension, the BBR Motorsports Rear Shock Spring 660-HXR-5005 delivers the support and chassis control your machine needs. Engineered approximately 30% stiffer than stock on most applications, this heavy-duty spring eliminates excessive sagging, keeps the rear end higher in the stroke, and significantly improves bottoming resistance during hard landings and pit bike riding.

Custom wound from aircraft-quality spring steel, each spring is preset and stress-relieved during manufacturing to prevent sag over time and preserve its 392 lb/in (7.00 kg/mm) linear rate. Finished in a high-durability red powder coat, it provides a direct replacement fitment that matches OEM-level dimensions while giving your rear shock the performance upgrade required for heavier or faster riders.

Top Features: BBR Motorsports Rear Shock Spring

• Custom wound from high-tensile, aircraft-quality spring steel for maximum durability
• Features a 392 lb/in (7.00 kg/mm) linear rate designed specifically for adult and aggressive pit bike riders
• Delivers approximately 30% stiffer response than OEM springs on most supported applications
• Preset and stress-relieved during manufacturing to resist permanent set and fatigue

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Is this shock spring difficult to install on the stock pit bike rear shock?
A: Replacing a rear shock spring requires compressing the spring to remove the retaining collar. Using a dedicated spring compressor tool or having a shop perform the swap ensures a safe and accurate installation.

Q: Will this spring raise the seat height of my bike?
A: While the unloaded height remains identical at 4.76 inches, the stiffer 392 lb/in rate reduces rider sag (settling under your weight), keeping the rear suspension higher in its stroke during operation.

Expert Pro-Tip: When upgrading to a stiffer rear shock spring on a pit bike, match the upgrade with stiffer front fork springs or heavier weight fork oil. Balancing front and rear spring rates prevents front-end dive and keeps the chassis balanced over jumps and rough terrain.

Recommended Pairings:

• Honda CRF50F / XR50R Performance Parts & Upgrades
• Pit Bikes All Performance Parts
• Suzuki Performance Parts

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