Yokomo R12-21SSH Super Hard Rear Side Roll Spring Precision Handling  [R12-21SSH]

Yokomo R12-21SSH Rear Side Roll Spring Copper(Super Hard) for YRX12/GT/YR-10F
Price:
£2.49
Brand:
Yokomo
Model:
R12-21SSH
GTIN:
3888
Condition:
Brand New
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Precision Rear Side Roll Spring for Corner Control

The Yokomo R12-21SSH rear side roll spring is formed from super hard copper to deliver firmer rear roll control and improved cornering precision. It is aimed at enthusiasts tuning YRX12, GT and YR-10F chassis who need a predictable rear response for race conditions.

Fitment Across Yokomo Models

This spring is compatible with several Yokomo models such as YR-10F, GT5-R35, GT5-SC430 and GT3-REA, so it is useful for those who run different GT or touring car platforms. Its consistent properties help preserve setup data when moving between cars.
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 a harder rear spring increase tyre wear?

A stiffer rear spring can alter load distribution and may change how tyres scrub in corners; monitor wear and adjust camber or toe to maintain even contact.

Is the R12-21SSH robust for regular track use?

Built from super hard copper, the spring offers strong fatigue resistance for routine track running, but regular inspection of mounts is recommended.

How do I evaluate changes after installing this spring?

Compare lap times and corner entry behaviour before and after fitting, and make incremental adjustments to damping and anti roll bars to dial in balance.

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