Yokomo R12-20S Rear Bulk Head Shaft - Upgrade for R12  [R12-20S]

Yokomo R12-20S Rear Bulk Head Shaft for R12
Price:
AUD$4.18
Brand:
Yokomo
Model:
R12-20S
GTIN:
3888
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Spares / Hop-ups - Yokomo - R12 category
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Product summary for the R12 rear bulk head shaft

This RC-scale rear bulk head shaft is manufactured for the Yokomo R12 platform and supplied as a direct replacement or an upgrade component for the rear bulkhead assembly. It is designed to stabilise rear axle geometry and keep alignment consistent under load, aiding predictable rear suspension response on a variety of surfaces.

To install: dismantle the rear bulkhead, remove the old shaft, fit the R12-20S into the bulkhead housing, and check clearances with the suspension linkages and drive components. Confirm correct seating and smooth rotation before completing reassembly to avoid binding or premature wear.

On-track impact: this shaft influences rear suspension geometry and squat; fitting a stiffer or different finish shaft can alter rear-end feel during acceleration and corner exit. Make measured changes and use practice runs to assess handling outcomes.

Compatibility

  • GT5-R2
  • GT5-RS2
  • YR-R12C3
  • YR-R12C31
  • GT5-R35
  • GT5-SC430
  • GT3-REA
  • GT3-IS350
  • GT3-B4
  • GT3-CAX
  • GT3-BRZ
  • GT3-AHP
  • GT-B
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 a direct swap into the existing rear bulkhead?

Yes, the part is intended as a direct replacement for the standard rear bulkhead shaft on compatible R12 and GT series chassis. Verify fitment against the compatibility list before fitting.

What should I check during installation?

Ensure the shaft seats fully, rotates freely, and clears the rear suspension links and drives. Tighten fastenings to the correct torque and re-check alignment after the first test runs.

How do I evaluate handling changes after fitting?

Use short, repeatable test runs focusing on corner exit and traction. Record lap times and notes for each change; this helps isolate the effect of the shaft versus other setup adjustments.

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