YZ-4 Rear Upper Arm Mount with Caster Options - Z4-300RU by Yokomo [Z4-300RU]

Yokomo Z4-300RU Upper Arm Mount Rear for YZ-4

Price:

CAD$10.40

Brand:

Yokomo

Model:

Z4-300RU

GTIN:

3888

Not Available

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Spares / Hop-ups - Yokomo - YZ-4 category

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Description
FAQ

YZ-4 rear upper arm mount

This standard rear upper arm mount is made for the 1/10 4WD off-road YZ-4 platform. It secures the upper end of the rear suspension arm and is engineered to match the YZ-4 rear suspension geometry.

The mount includes a caster-adjustment bush that provides selectable caster angles of 0 degrees, 2.5 degrees and 5 degrees. Swapping the bush changes the rear axle tilt relative to the hub, letting you tune steering return and straight-line stability without replacing the suspension arm.

Installation uses the YZ-4 rear mounting points and the original chassis hardware; no chassis modification is required. Keep fasteners torqued to the original specification and check clearance after fitting to ensure correct operation.

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.

Which chassis mounting points are supported?

This mount is designed for the YZ-4 and aligns with the B-YZ4 chassis rear mounting points so it fits in the factory locations.

What handling changes result from each caster setting?

Lower caster (0 degrees) gives quicker steering return, while higher caster (5 degrees) tends to increase high-speed straight-line stability. Use the 2.5 degrees position for a middle ground.