BD8 2018 RTC Rear Arm Upgrade - Yokomo B8-RTC-12  [B8-RTC-12]

Yokomo B8-RTC-12 RTC Rear hard sus arm(54mm-40.5mm Graphite molded) for BD8 2018
Price:
AUD$7.17
Brand:
Yokomo
Model:
B8-RTC-12
GTIN:
3888
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Rear suspension arm for tighter toe control on BD8

Made for use with the optional RTC (Rear Toe Control) system on BD8 2018 vehicles, this graphite molded rear hard suspension arm preserves the intended rear geometry. It uses a 54mm in/out suspension pin spacing together with a 40.5mm shock pivot to match BD8 2018 specifications.

Fit this arm to stiffen the rear link, reducing hub flex and helping toe remain consistent under load. It replaces the standard rear arm and functions with RTC hardware to enable finer toe adjustments without changing other suspension settings.

Tuning impact: a harder arm tends to make turn-in crisper and can stabilise laps on higher-traction surfaces while increasing rear kick on loose ground; always verify roll centre and shock angle after install and continue using the original mounting hardware unless the RTC kit advises otherwise.

Compatibility

  • BD8 2018
  • MRTC-BD818
  • MRTC-BD818A
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 does this arm alter corner entry and stability?

Installing a stiffer rear arm sharpens turn-in and can improve consistency on grippy surfaces by reducing hub flex, though it may increase the tendency for the rear to step out on loose tracks.

Do I need different mounting hardware for the RTC fitment?

In most cases retain the standard mounting hardware; only use different fasteners if the RTC kit documentation specifies replacements.

Should I check ride height after swapping arms?

Yes. While ride height is normally determined by shock mounting, verify shock angle and roll centre after fitting to ensure the handling balance remains as expected.

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