Yokomo B9-S114A 1.1mm 4-Hole Shock Piston  [B9-S114A]

Yokomo B9-S114A ?1.1mm 4 holes piston for BD9
Price:
NZD$16.18
Brand:
Yokomo
Model:
B9-S114A
GTIN:
0639342204779
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - MSR-BD12A category
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Fine Balance with the Yokomo 1.1mm 4-Hole Piston

Built for BD9 high big bore short shocks, the Yokomo B9-S114A piston uses four 1.1mm holes to stabilise oil flow and deliver reliable damping. Its predictable behaviour makes it useful for drivers refining corner entry and mid-corner balance.

Which Chassis Work with This Piston

Compatibility covers several Yokomo frames, such as MRTC-BD10, MRTC-BD10A and MRTC-BD10LC among others. It installs cleanly into matching shock kits for straightforward setup work.
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 piston fit any BD9 shock length?

It is made for BD9 high big bore short shocks; always confirm piston diameter and mounting style against your shock parts before fitting.

What oil weight pairs well with 1.1mm holes?

Mid-range oils are a good starting point; test a couple of weights to find the balance between response and control for your track.

Any tips for longer service life?

Keep oil clean, replace seals when worn, and avoid contaminating the piston ports during maintenance to preserve damping consistency.

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