Yokomo BD-S4 22.5mm Race-Grade Shock Cylinder for BD7 BD5  [BD-S4]

Yokomo BD-S4 Shock Silinder (22.5mm) for BD7/BD5
Price:
AUD$15.15
Brand:
Yokomo
Model:
BD-S4
GTIN:
3888
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - BD7 category
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Refine BD7 and BD5 Dampers with Yokomo BD-S4

The Yokomo BD-S4 shock cylinder increases reservoir capacity versus older versions to support steadier damping under hard use. Its fluorine treated surface lowers friction so suspension movement feels smoother and more consistent when pushing hard.

Core Features of the Yokomo BD-S4

  • Stability Boost: Expanded internal volume helps keep handling composed at higher speeds.
  • Low-Friction Coating: Fluorine treatment reduces piston drag for crisper damper action.
  • BD7 and BD5 Compatibility: Built to match the dimensions and fittings of BD7 and BD5 shocks.
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.

Is this an easy upgrade for weekend racers?

Installation follows standard shock rebuild steps. If you can service shocks you can install the BD-S4, and you will notice smoother action once properly assembled.

What differences will I feel on street or carpet tracks?

Reduced internal friction gives a more compliant damper feel and steadier response through repeated bumps, which helps traction on varied surfaces.

How often should I service these cylinders?

Service interval depends on use, but inspect seals and oil after heavy sessions and replace oil during routine shock maintenance to preserve performance.

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