Yokomo R12-10UG Hard Upper A-arm  [R12-10UG]

Yokomo R12-10UG Hard Upper
Price:
USD$4.40
Brand:
Yokomo
Model:
R12-10UG
GTIN:
3888
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - R12 category
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Stiffer upper arm for R12/GT setups

This hard upper A-arm is an RC-scale accessory designed for Yokomo R12 and GT family cars. The component is molded from a stiffer resin than typical stock parts, which reduces play in the upper arm during lateral load and helps stabilize the suspension through cornering. The part is intended as a tuning option to tighten front-end feel and reduce unpredictable arm motion at speed.

Installation is straightforward for users familiar with standard A-arm servicing: check mating surfaces, confirm ball joint and hinge-pin clearance, and verify symmetric fit left to right. This item affects chassis behavior by stiffening the upper link, so use it when you want crisper turn-in and a firmer front-end response without changing geometry.

Compatibility

  • YR-R12C3
  • YR-R12C31
  • GT5-R35
  • GT5-SC430
  • GT3-REA
  • GT3-IS350
  • GT3-B4
  • GT3-CAX
  • GT3-BRZ
  • GT3-AHP
  • GT-B
  • GT5-R2
  • GT5-RS2
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.

What benefit does a harder upper arm provide?

A harder upper arm reduces flex and play under lateral load, which can make turn-in more predictable and reduce suspension wobble during cornering.

Is special hardware required for installation?

No special hardware is listed, but inspect existing hinge pins and ball studs for proper fit and torque when swapping parts to ensure safe operation.

Will this part change suspension geometry?

The part is designed as a like-for-like upper A-arm option; it stiffens the link rather than altering mounting geometry, but always check alignment after fitment.

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