Before mounting, set the pre-load. The manual states the baseline spring length should be (measured from the top of the spring perch to the bottom of the upper seat). Turn the lower locking collar clockwise to increase pre-load (for heavier vehicles or stiffer ride) or counter-clockwise to decrease.

SAG is the amount the shock compresses under your body weight. For the BR 3021, aim for . Slide the O-ring against the shock body. Sit on the bike in full riding gear without bouncing. Gently dismount and measure the distance the O-ring moved. To increase SAG: Release air via the Schrader valve. To decrease SAG: Add air using a high-pressure shock pump. 🔄 Adjustment Guide Rebound Damping (Red Knob)

The is a military-grade standard primarily used for the design, selection, and testing of shock-mounting systems for onboard naval equipment. It is often cited alongside other major standards like MIL-S-901D or BV 043 . The manual serves two primary purposes:

The BR-3021 began to read him . It cycled through his emotional states like flipping pages. Each flick of his suppressed rage caused his left leg to spasm. Each memory of injustice on the station—the 18-hour shifts, the recycled air, the quiet disappearances—tightened his diaphragm until he gasped.

Manufacturers must provide detailed shock attenuation calculations to prove the selected mounts meet the specific zone requirements of the ship.

During a shock event, the mountings must limit the force and movement transmitted to the equipment to pre-defined acceptable values.