Yokomo B9-S114A 1.1mm 4-Hole Piston for BD9 Shocks  [B9-S114A]

Yokomo B9-S114A ?1.1mm 4 holes piston for BD9
Price:
CAD$13.13
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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Tune Your Damping with Yokomo 1.1mm Piston

For RC builders who want tighter suspension control, the Yokomo B9-S114A piston is made to work with BD9 high big bore short shocks. The four 1.1mm ports help maintain steady oil flow for predictable damping, allowing racers to refine handling and stability on the track.

Chassis Fitment Details

This piston fits a selection of Yokomo chassis, including MRTC-BD10, MRTC-BD10A, MRTC-BD10LC and others. It integrates cleanly into compatible shock assemblies for straightforward setup adjustments.
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.

How does the 4-hole layout affect damping feel?

The 4-hole pattern smooths oil passage and reduces abrupt damping spikes, giving a more linear feel that helps with mid-corner balance.

What should I check before installing the piston?

Check that your BD9 high big bore short shock body is clean and that the piston slides freely on the shaft; inspect seals and clean oil channels before assembly.

Can I tune handling with oil weight when using this piston?

Yes, changing shock oil viscosity will alter compression and rebound; pair oil choices with the B9-S114A piston to achieve the desired response.

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