This Yokomo YOKRP-084O Ultra Off-Road Rear Spring (Orange) is an RC-scale rear spring made for the rear suspension of 1/10-class off-road buggies and trucks. It serves as a direct replacement or tuning option to change rear-end behavior without altering shock bodies or mount points.
The spring is formed from corrosion-resistant steel wire and finished in an orange coating to make spring-rate selection and identification easier during setups. As an aftermarket option, it is intended to provide consistent, linear response aimed at improving corner exit traction and mid-corner stability on loose surfaces.
Installation is straightforward on standard shock assemblies: remove the shock cap and spring retainer, replace the spring while keeping any internal shims or spacers in place, then confirm preload and that the spring seats correctly. Always inspect shock shaft straightness and shock oil condition when swapping springs to reduce variable changes during tuning.
Tuning notes: firmer rear springs typically reduce squat and sharpen turn-in under acceleration, while softer springs increase compliance and traction on rough or looser terrain. Make changes incrementally and test on representative surfaces, adjusting preload before switching spring sets. Record setup changes so you can return to a baseline during practice or events.
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