This small RC damper component is made to work with L.F Pro Shock assemblies, sitting beneath the adjuster nut to preserve seal integrity and keep the adjuster correctly positioned. It is an accessory for model dampers and is not intended for full-size vehicles.
In service the O-ring helps maintain seating for the adjuster nut and supports the damper seal, which reduces oil loss and ingress of dirt. That stability makes preload and damping settings more repeatable when you are tuning the shock.
Basic installation is straightforward: take off the adjuster nut, place the O-ring in the correct seating on the adjuster shaft or in the shock cap as required by your shock design, then replace the nut taking care not to pinch the ring. Regularly inspect it for cuts, flattening, or hardening and replace if the seal is compromised.
Practical tips: apply a light coating of silicone grease that is compatible with your shock oil to ease fitting and prevent swelling, avoid over-tightening the adjuster nut to prevent deformation, and check for leaks after a short test run to confirm proper sealing.
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