Yokomo S4-300RSA 1mm Aluminium Rear Suspension Spacer  [S4-300RSA]

Yokomo S4-300RSA Aluminum Rear Suspension Mount Spacer for YZ-4S
Price:
CAD$6.22
Brand:
Yokomo
Model:
S4-300RSA
GTIN:
0639342210107
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $7.76 each $-3.09 or -25%
3+ $6.70 each $-1.45 or -8%
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Fine Tuning with Yokomo S4-300RSA

The Yokomo S4-300RSA Aluminum Rear Suspension Mount Spacer is aimed at RC builders who want to refine the rear geometry on YZ-4S and compatible cars. At 1mm thick, the spacer gives a subtle, controllable change to suspension setup, helping to improve stability and steering precision. Machined from durable aluminum, it balances light weight with strength for dependable off-road use.

Optimise Off-Road Handling

Made for the YZ-4S, this spacer also fits chassis such as the B-YZ4SF, B-YZ4SF2-1, MOR-010, and MOR-020. The 1mm increment can influence roll centre and tyre load distribution, which is useful when tuning for looser surfaces or tighter tracks. Whether on the track or at the local bash, it helps you dial in the handling you need.

Simple Fitment and Versatility

Fitting the Yokomo spacer is straightforward and uses the existing rear mount hardware, so no major mods are required. Its cross-chassis compatibility makes it a handy spare for racers who swap cars or run multiple setups. Built to resist wear, it delivers consistent geometry adjustments across varied conditions.
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 effect does a 1mm spacer have on handling?

A 1mm spacer makes small but meaningful changes to rear suspension alignment, influencing roll and traction balance. It helps fine tune corner entry and mid-corner stability without drastic geometry shifts.

Do I need special tools to fit it?

No special tools are required beyond common RC hand tools like hex drivers and a small wrench. The spacer installs using the stock mounting screws and hardware.

Is the spacer compatible with stock mounts?

Yes, it is designed to integrate with the stock rear suspension mount on supported chassis. Always verify the chassis model before fitting to ensure correct alignment.

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