Kyosho UMW531B Alloy Rear Arm Mount for Ultima SB  [KY-UMW531B]

Kyosho UMW531B - Aluminum Rear Sus.Holder (RF2/SB)
Price:
AUD$37.77
Brand:
Kyosho
Model:
KY-UMW531B
GTIN:
4548565470792
Condition:
Brand New
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alt="Kyosho UMW531B - Aluminum Rear Sus.Holder (RF2/SB)" title="Kyosho UMW531B - Aluminum Rear Sus.Holder (RF2/SB)"

Track-Focused Rear Mount for Ultima SB - Kyosho UMW531B

The Kyosho UMW531B Aluminum Rear Suspension Holder is crafted for the Ultima SB lineup to provide a firmer mounting point at the rear of the car. Its machined aluminium construction helps reduce mounting flex and keeps alignment stable during aggressive driving.

Benefits for Club and Track Drivers

Switching to the UMW531B gives a more predictable rear end by limiting deformation under load. That improved stiffness helps drivers maintain consistent handling across different surface conditions.

Simple Replacement and Fitment Notes

This holder follows the Ultima SB mounting pattern for an easy changeover using standard tools. Keep original screws where possible and check fit before full assembly to ensure correct geometry.
Remark :
Due to limited stock availability, please notice that some Kyosho 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 change my car balance substantially?

You may notice a firmer rear feel and slightly different balance, but changes are usually subtle and improve predictability rather than upset handling.

Are special screws required for the aluminium holder?

In most cases the original hardware can be reused. Replace any stripped or worn fasteners and use threadlocker where recommended for racing use.

Does the finish need any protection?

Anodised finishes are durable but inspect for chips after impacts. Clean debris from mounting faces to preserve seating and avoid crevice corrosion.

Can I use it for offroad running?

The holder is robust enough for rough surfaces, but always check for rock strikes and bent parts after heavy offroad use.

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