King Shocks 26in 4.0 Race Shock 5 Tube Bypass Piggyback Res 1.25in Shaft Large 1in Bypass Tubes

What you get with this King Shocks 4.0 Race Shock is a complete, high-performance damping unit built for the most demanding off-road conditions. This shock features a substantial 4-inch diameter main body, a 1.25-inch diameter hardened steel shaft for strength, and a piggyback reservoir for additional oil capacity and cooling. It also includes five 1-inch diameter bypass tubes, allowing for precise tuning of compression and rebound damping characteristics across different stages of suspension travel.

This is a serious piece of suspension hardware, designed for vehicles that see extreme use. The large 4-inch body holds more oil, which helps keep temperatures down during long, hard runs, preventing shock fade. The piggyback reservoir is adjustable, letting you fine-tune the damping settings without having to disassemble the shock. The five bypass tubes are where the real tuning magic happens; by adjusting the position of the internal valving within these tubes, you can independently control how the shock behaves during compression and rebound, allowing you to dial in the perfect feel for everything from washboard roads to big jumps.

When you're building a race truck or an extreme off-road rig, components like this are critical. The robust construction, including the large shaft and heavy-duty bypass tubes, means it's built to withstand the abuse of competition and serious trail riding. While installation will require specific knowledge of off-road suspension setups and potentially custom fabrication to mount the reservoir and bypass tubes, the result is a level of control and performance that factory shocks simply can't match. This shock is a key component for anyone serious about maximizing their vehicle's suspension performance in extreme environments.