Yokomo R12-21SSH Super Hard Rear Side Roll Spring Track Tune  [R12-21SSH]

Yokomo R12-21SSH Rear Side Roll Spring Copper(Super Hard) for YRX12/GT/YR-10F
Price:
NZD$5.68
Brand:
Yokomo
Model:
R12-21SSH
GTIN:
3888
Condition:
Brand New
Write a review

Improve Stability with a Super Hard Copper Spring

The Yokomo R12-21SSH rear side roll spring uses super hard copper to raise rear roll stiffness and sharpen turn-in response. It is a practical upgrade for racers running YRX12, GT and YR-10F chassis who want more predictable behaviour through quick direction changes.

Compatible Yokomo Chassis and Use Cases

This component fits a range of Yokomo cars, including YR-10F, GT5-R35, GT5-SC430 and GT3-REA, offering flexibility for drivers who run multiple setups. Use it to fine tune rear end stiffness without altering other major components.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will this spring help on high grip surfaces?

On higher traction tracks the extra rear stiffness from a super hard spring can reduce excessive roll and improve mid corner stability, but you may need to soften front settings to retain rotation.

Which Yokomo models work with R12-21SSH?

The R12-21SSH is compatible with YRX12 and a variety of GT series models such as YR-10F, GT5-R35 and GT3-REA, allowing cross-vehicle use.

How should I maintain the spring for long life?

Keep the spring free of grit and check mounting points after runs. Copper is durable but regular inspection prevents premature wear and keeps handling consistent.

Copyright © 2008-2025 rcjaz.co.nz All rights reserved