Yokomo S4-008RS4A Graphite Rear Arm for YZ-4S - Race Tuned  [S4-008RS4A]

Price:
CAD$14.96
Brand:
Yokomo
Model:
S4-008RS4A
GTIN:
0639342187690
Condition:
Brand New
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Grip Upgrade with Yokomo S4-008RS4A Graphite Arm

The Yokomo S4-008RS4A rear suspension arm is machined from strong graphite and made for the YZ-4S chassis. It is about 1mm shorter than the standard L5 arm, which helps increase traction on low-adhesion tracks and gives drivers more confidence through slick corners.

Fitment and On-Track Benefits

This rear arm suits a range of Yokomo YZ-series chassis including B-YZ2DTMW, B-YZ2CAL2, B-YZ4SF, B-YZ2DTM2, and B-YZ2DTM2S, making it a practical upgrade. The reduced length sharpens initial rear bite and makes steering response feel more direct, useful for tight technical layouts.
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 hard is it to swap the S4-008RS4A into my YZ-4S?

Installation is straightforward since it uses the same mounting points as the stock arm; basic tools and a careful setup are all you need.

Will this arm change suspension geometry noticeably?

The 1mm reduction subtly alters rear roll behaviour, boosting traction without major changes to ride height or camber when used with normal setups.

Any maintenance tips for graphite arms?

Keep the arm free of grit, check pivot holes for wear, and re-tighten mounting hardware after the first few runs; replace if you spot cracks after impacts.

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