Yokomo Y4-S5A SLF Big Bore Shock Shaft - Performance Upgrade  [Y4-S5A]

Yokomo Y4-S5A Shock shaft for SLF Big bore shock
Price:
£2.69
Brand:
Yokomo
Model:
Y4-S5A
GTIN:
0639342214310
Condition:
Brand New
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Refine YD-4 Suspension with Yokomo Y4-S5A

The Yokomo Y4-S5A shaft is made for the SLF big bore shock arrangement and serves as a direct upgrade for YD-4 owners seeking steadier damping and simpler tuning. It emphasises predictable shock movement rather than altering basic geometry.

Precision Machining for Stable Handling

With careful manufacturing, the Yokomo Y4-S5A helps maintain consistent shock action under load and over repeated runs. The result is a dependable shaft that supports more accurate suspension adjustments and steadier on-track behaviour.
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 change ride height or spring rate?

No. The shaft itself does not change spring rate or ride height; it improves the smoothness and repeatability of shock motion, which can affect fine tuning choices.

How often should I inspect the shaft?

Check the shaft and seals after heavy running or every few events. Look for scoring or wear and service the shock as part of regular maintenance to avoid performance loss.

Can I tune damping the same as before?

Yes. Use your existing oils and springs and adjust damping to suit track conditions; the improved shaft simply gives steadier feedback to inform settings.

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