Yokomo B9-BW40A 40g Centre Weight for BD9  [B9-BW40A]

Yokomo B9-BW40A Center Balance Weight (40g)
Price:
NZD$29.45
Brand:
Yokomo
Model:
B9-BW40A
GTIN:
0639342182626
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - MRTC-BD919S category
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alt="Yokomo B9-BW40A Center Balance Weight (40g)" title="Yokomo B9-BW40A Center Balance Weight (40g)"
alt="Yokomo B9-BW40A Center Balance Weight (40g)" title="Yokomo B9-BW40A Center Balance Weight (40g)"

BD9 centre ballast insert

The Yokomo B9-BW40A provides 40g of central ballast as an accessory for BD9-series cars. When positioned at the chassis centre, this weight allows precise tuning of how the car reacts in pitch and roll without moving mass to individual corners.

Made for BD9-style frames, the unit is a quick method to introduce central ballast during setup changes on electric touring machines. It is installed at the chassis centre so changes remain focused on centralized mass effects.

Specifications

  • Item: Center balance weight
  • Model Number: B9-BW40A
  • Weight: 40g
  • Compatibility: MRTC-BD919 / MRTC-BD919S

Compatible Models

  • MRTC-BD919
  • MRTC-BD919S

Use the B9-BW40A to add central ballast while you test handling changes, keeping mass focused centrally for consistent chassis response.
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 do I fit the B9-BW40A to my chassis?

Mount the weight at the chassis centre using the existing centre mounting points or the designated tray area, ensuring it sits flat and secure.

Do I need extra hardware to install it?

Installation typically uses factory or standard screws; check that screw length clears the weight and does not interfere with components beneath.

Will adding this change handling a lot?

Central ballast subtly shifts pitch and roll characteristics; it is meant for fine adjustments rather than large handling overhauls.

What tools are recommended for fitting?

A set of precision screwdrivers and a torque feel are helpful to ensure screws are snug without over-tightening.

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