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

Yokomo R12-20S Rear Bulk Head Shaft for R12
Price:
£2.23
Brand:
Yokomo
Model:
R12-20S
GTIN:
3888
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Spares / Hop-ups - Yokomo - R12 category
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Technical overview: rear bulkhead shaft for R12 and GT series

This item is an RC-scale rear bulk head shaft designed specifically for the Yokomo R12 platform, offered as either a direct replacement or an upgrade for the rear bulkhead assembly. It concentrates on stabilising rear axle geometry and preserving alignment under dynamic loads, which is beneficial when modifying parts or optimising rear suspension for competition.

Fitting procedure: remove the rear bulkhead, extract the existing shaft, fit the R12-20S into the bulkhead housing and check clearance around the rear suspension linkages and drive components. Ensure proper seating and smooth rotation before finishing the rebuild to prevent binding and uneven wear.

Tuning impact: the shaft plays a role in rear suspension geometry and squat characteristics; switching to a firmer or differently finished shaft will adjust rear-end behaviour during acceleration and cornering. Change components incrementally and evaluate on-track to confirm desired handling improvements.

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.

Will this shaft fit different GT-series variants?

Check the compatibility list above for specific GT-series codes; the shaft is compatible with the models shown and is intended for R12 and the listed GT variants.

Does the surface finish affect performance?

Yes. Surface finish and hardness influence friction and durability; a smoother, hardened finish can reduce wear and slightly modify handling characteristics. Maintain clean contact areas and inspect regularly.

How should I approach tuning after swapping shafts?

Adopt a methodical approach: fit the shaft, complete baseline runs, then adjust one variable at a time. Note changes in rear traction and corner exit to determine whether further tweaks are needed.

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