Bilstein 33-321905 SZ Series Motorsport Shock Absorber - 46mm

The Bilstein SZ Series shock absorber is engineered specifically for motorsports applications where rules prohibit rebuildable shocks. This sealed shock features a robust 46mm piston design with durable steel construction and a smooth body finish for reliable performance under demanding racing conditions.

Key Features:

• 46mm monotube piston design for consistent damping performance
• Standard digressive valve settings using proprietary spring steel valve discs
• Durable steel construction with smooth body finish
• Convertible to coilover configuration with separately sold conversion kit
• Available in multiple lengths to suit various racing applications
• Non-rebuildable sealed design compliant with sanctioning body regulations

The SZ Series utilizes Bilstein's proven digressive valving technology with precision-manufactured spring steel valve discs, delivering progressive damping characteristics that improve as shaft speed increases. This makes the shock ideal for circuit racing, autocross, and other competitive motorsports where consistent performance and rules compliance are essential.