The Bilstein B8 8100 ZoneControl R 60mm shock absorber provides dual speed adjustment and reservoir damping for lifted trucks and SUVs.

Engineered specifically for lifted vehicles, the Bilstein B8 8100 (ZoneControl R DSA) shock absorber features a 60mm (2.65-inch outer diameter) large bore piston and monotube design to deliver fade-free performance and position-sensitive rebound damping. Measuring 32 inches in length, 14 inches in width, and 6 inches in height while weighing 22.25 pounds, this direct-fit suspension upgrade eliminates harsh top-out events without requiring external limit straps.

• Dual Speed Adjustment: Integrated click adjuster knobs allow precise tuning of low and high-speed compression to tailor ride characteristics to varying off-road and street terrain.
• ZoneControl R Technology: The double-piston design provides position-sensitive rebound damping, ensuring consistent control and eliminating harsh suspension top-out during extreme wheel articulation.
• Direct-Fit Hardware: The included mounting kit features heavy-duty steel brackets, zinc-plated fasteners, upper rubber bushings, and a branded Bilstein reservoir clamp for straightforward installation on lifted platforms.
• MonoTube Construction: Velocity-sensitive digressive valve settings tuned for specific applications deliver reliable, fade-free damping under heavy loads and high operating temperatures.
• Advanced Damping: The large 60mm piston offers superior oil flow and thermal management, maintaining comfort and control across all driving conditions without aftermarket modifications.
• Reservoir Integration: Each shock absorber includes a dedicated remote or piggyback reservoir option for easy, hassle-free integration into your custom suspension setup.