Yokomo Y4-S4A Aluminum Big Bore Shock Cylinder Upgrade  [Y4-S4A]

Yokomo Y4-S4A SLF Aluminum shock cylinder for Big bore shock
Price:
CAD$24.98
Brand:
Yokomo
Model:
Y4-S4A
GTIN:
0639342214297
Condition:
Brand New
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Yokomo Y4-S4A Kashima-Coated Cylinder for Smoother Damping

The Yokomo Y4-S4A Aluminum Shock Cylinder is a purpose-built upgrade for YD-4 series big bore shocks, offering a Kashima Coat finish that promotes very smooth action and helps tame vibration. These traits make a notable difference when running hard compound tyres and seeking better traction on the track.

Durable Design for Track-Focused Users

The Kashima Coat reduces surface friction and helps the cylinder resist wear, extending service life during regular use. That reliability is useful for racers and club drivers who demand consistent shock response lap after lap.

Specifications

  • Material: Aluminum, Kashima Coat finish
  • Compatibility: YD-4 big bore shocks
  • Function: Improves damping smoothness and traction control

A solid choice for hobbyists wanting a durable upgrade to their YD-4 shocks that enhances traction and steadies handling under load.
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 the Yokomo Y4-S4A fit non YD-4 shock bodies?

The Y4-S4A is made for YD-4 big bore shocks; if another model shares the same bore and mounting dimensions it may fit, but check measurements before swapping parts.

How does the Kashima Coat affect maintenance?

The coating lowers friction and tends to reduce wear on sliding surfaces, which can extend service intervals, though regular inspection of seals and oil remains essential.

Any setup tips for better traction?

Try slightly heavier shock oil and fine tune spring rates when fitting the Y4-S4A to compensate for harder tyres; small adjustments to ride height and rebound will help dial in grip.

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