Yokomo R12 Lower A-Arm Ultra Soft Spring R12-10LSU for Front Tuning  [R12-10LSU]

Yokomo R12-10LSU Lwr A arm Spring Ultra Soft fr R12
Price:
£1.56
Brand:
Yokomo
Model:
R12-10LSU
GTIN:
3888
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Front lower A-arm ultra soft option for the R12 series

This product is an ultra soft lower A-arm spring intended for front suspension tuning on Yokomo R12 and the associated GT lineup. It lowers the initial spring rate at the lower arm to give a more compliant front end without altering suspension geometry.

Use the spring to gain traction on low-grip surfaces by softening the front response and smoothing transitions. The trade-off is reduced instant steering aggression, so pair changes with damper and ride height adjustments to maintain handling balance.

Installation is a direct replacement on compatible R12/GT lower A-arm assemblies—swap the factory spring for this part and confirm full travel clearance. Review spring preload and damper tune after installation to rebalance car behavior.

Compatibility: GT5-R35, GT5-SC430, GT3-REA, GT3-IS350, GT3-B4, GT3-CAX, GT3-BRZ, GT3-AHP, GT-B, GT5-R2, GT5-RS2, YR-R12C3, YR-R12C31.
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.

Does this part suit all R12 variants?

It fits the listed R12 and GT variants shown above. Compare your chassis code and arm design to the compatibility list, or contact the retailer if unsure.

How should I change setup after fitting this spring?

After fitting, reduce damping or adjust rebound to tame the softer spring motion. Small iterative changes with test runs will find an effective setup.

Will this improve lap times on low-grip tracks?

On low-traction surfaces the added compliance can increase cornering grip and consistency, which may lower lap times when matched with the correct damping and ride height.

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