Serpent 500908 13mm front shock spring blue 3.7lbs  [SER500908]

Front shock spring role

This 13mm front shock spring from Serpent is a scale accessory for RC cars designed to alter front suspension behavior by changing spring rate and initial support. The listed rate is 3.7lbs and the spring is finished in blue, details that matter when selecting springs for tuning rather than structural strength or chassis modification.

Use this spring where the shock assembly accepts 13mm springs; check that the spring seats, preload collars, and shock shaft clearance are compatible before installation. Installation follows standard RC shock service: drain oil and disassemble the shock if necessary, slide the spring over the shock body, adjust preload with the collar, and reassemble while confirming free shaft movement.

On-track tuning notes: a stiffer front spring increases initial support and can reduce dive under braking, while a softer spring increases compliance and traction on bumpy surfaces. Combine spring changes with damper oil and piston adjustments to achieve balanced handling, and test incrementally rather than changing multiple variables at once.