Yokomo Y4-S5A SLF Big Bore Shock Shaft - Tuners Edition  [Y4-S5A]

Yokomo Y4-S5A Shock shaft for SLF Big bore shock
Price:
NZD$6.29
Brand:
Yokomo
Model:
Y4-S5A
GTIN:
0639342214310
Condition:
Brand New
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Tune the YD-4 with Yokomo Y4-S5A

The Yokomo Y4-S5A shaft is made for the SLF big bore shock setup, offering a direct upgrade path for YD-4 owners wanting finer suspension adjustments. It focuses on stable performance and longer service intervals for club and race days.

Accurate Fit for Better Shock Feel

Engineered to match the SLF big bore geometry, the Yokomo Y4-S5A shock shaft helps keep damping behaviour consistent lap after lap. The construction supports predictable rebound and compression characteristics for improved driver feedback.
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.

Can I use this shaft on older YD-4 variants?

It is built for the SLF big bore shock format used on YD-4 models. Older variants that share that shock specification can fit, but confirm shock dimensions before fitting.

Will this change my car balance?

The shaft itself does not alter spring rates or oil viscosity, but its smoother action can make suspension responses more consistent, which may affect fine balance settings.

Is replacement straightforward for hobbyists?

Yes. Follow normal shock strip and rebuild procedures, keep a clean workspace, and replace seals if they show wear to ensure correct operation.

Does it require new springs or spacers?

No mandatory spring change is needed. Use your current springs and oil, then fine tune settings to take advantage of the improved shaft action.

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