Yokomo R12-21SS Rear Side Roll Spring Soft Compound  [R12-21SS]

Yokomo R12-21SS Rear Side Roll Spring Black (Soft) for YRX12/GT/YR-10F
Price:
NZD$5.50
Brand:
Yokomo
Model:
R12-21SS
GTIN:
3888
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Control Body Roll with the R12-21SS Soft Spring

For drivers who like to micro-adjust handling, the Yokomo R12-21SS provides a softer rear roll characteristic that tames abrupt rear behaviour. It is intended for use on YRX12, GT and YR-10F chassis and suits racers who tune spring rates for grip-focused tracks.

Performance Notes and Compatibility

This soft spring reduces rear roll stiffness, which can increase rear traction through long, sweeping bends. It is compatible across several Yokomo models so you can test different combinations without changing core suspension parts.

Suitable Models

  • YR-10F
  • GT5-R35
  • GT5-SC430
  • GT3-REA
  • GT3-IS350
  • GT3-B4
  • GT3-CAX
  • GT3-BRZ
  • GT3-AHP
  • GT-B
  • GT5-R2
  • GT5-RS2
  • YR-R12C3
  • YR-R12C31
  • YR-X12
  • YRF-001RF
  • YRF-001W
  • YR-X1219
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.
On low grip surfaces a softer rear roll spring can help the rear find traction by allowing more weight transfer, but combine it with tyre choice and shock damping adjustments for best results.
Yes, pairing a softer rear spring with a stiffer front setup is a common way to increase front bite and reduce understeer. Make small steps and test handling after each change.
Installation follows standard spring replacement procedures on compatible Yokomo rear assemblies. Check spring seating and clearance after fitting to avoid binding.

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