Yokomo S4-300UMA Heavy Duty Upper Suspension Mount for YZ-4S  [S4-300UMA]

Yokomo S4-300UMA Aluminum Upper Sus Mount (L/R) for YZ-4S
Price:
AUD$42.31
Brand:
Yokomo
Model:
S4-300UMA
GTIN:
0639342188222
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - YZ-4 category
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Heavy Duty Aluminium Mount for YZ-4S

The Yokomo S4-300UMA Aluminium Upper Suspension Mount is intended for the YZ-4S as a robust hop-up to replace stock units. It comes as one left and one right part and is suitable for installation on either the front or rear arms to ensure uniform behaviour.

Designed to Take Tough Running

Fabricated from durable aluminium and CNC finished, this mount offers better impact resistance and longevity than plastic originals. Its accurate dimensions help keep suspension alignment true, which improves stability during demanding off-road sessions. A practical choice for racers wanting reliable hardware.
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 fit aftermarket arms and upgrades?

This part is made for the standard YZ-4S mounting layout. Aftermarket arms may need checking for matching hole locations before swap over.

Does mounting increase unsprung weight?

Aluminium adds a small amount of weight compared to plastic, but the trade off is improved durability and more consistent handling under load.

Are these compatible with different shock setups?

Yes. The mount interfaces with standard YZ-4S shock and arm arrangements, so it will work with most shock setups that fit the chassis.

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