Yokomo S4-300RSA 1mm Rear Mount Spacer  [S4-300RSA]

Yokomo S4-300RSA Aluminum Rear Suspension Mount Spacer for YZ-4S
Price:
NZD$8.03
Brand:
Yokomo
Model:
S4-300RSA
GTIN:
0639342210107
Condition:
Brand New
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Precise Geometry Tuning with Yokomo S4-300RSA

The Yokomo S4-300RSA Aluminum Rear Suspension Mount Spacer is built for modders and racers refining the YZ-4S and compatible models. Its 1mm thickness provides a fine-tune option that adjusts rear suspension geometry in small steps, helping to stabilise handling on mixed surfaces. The aluminium construction keeps weight low while standing up to regular use.

Tune for Better Traction

Although created for the YZ-4S, this spacer also fits chassis such as B-YZ4SF, B-YZ4SF2-1, MOR-010 and MOR-020. The single millimetre change can alter tyre load and response, useful for finding grip on loose or rough tracks. Use the spacer to balance rear traction versus steering response.

Easy Installation and Reliable Fit

Installation is simple and uses your existing rear mount hardware, so it slips straight into most setups. Its multi-chassis fit makes it a practical part for those who switch cars during practice or competition. Finished for durability, it provides repeatable setup adjustments session after session.
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.

Will this spacer change ride height?

A 1mm spacer mainly adjusts suspension geometry rather than gross ride height. Expect subtle differences in roll centre and weight transfer rather than large increases in clearance.

Can I use it on other Yokomo models?

Compatibility is listed for the YZ-4S and several chassis. It may fit other models with similar rear mount layouts but check fitment before installing on a different platform.

How should I test changes after installing?

Make one change at a time and test on a familiar section of track. Note handling differences in corner entry and mid-corner, then adjust further as needed to dial in balance.

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