Kyosho UM731 RB6.6 Aluminium Hard Main Chassis  [KY-UM731]

Kyosho UM731 - Aluminum Hard Main Chassis(A7075T6/RB6.6
Price:
£60.46
Brand:
Kyosho
Model:
KY-UM731
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High-Strength Main Chassis for RB6.6 Builds

The Kyosho UM731 aluminium hard main chassis upgrades RB6.6 cars with A7075T6 alloy to deliver better torsional stiffness and on-track consistency. The robust construction focuses on repeatable handling under race conditions.

Performance Traits of A7075T6

Known for excellent strength relative to weight, A7075T6 helps keep chassis flex to a minimum while maintaining agility. That makes setups more predictable and durable over time.

Fitment and Installation Notes for RB6.6

Engineered to align with RB6.6 mounting points and component layouts, the chassis allows for a clean replacement without major alterations. Precision machining supports straightforward assembly and consistent alignment.

Specifications

  • Material: A7075T6 Aluminum
  • Compatibility: RB6.6 Series
  • Category: Spare Parts, Legendary Series

For racers who want a firmer, more stable platform for tuning and competition, the Kyosho UM731 Aluminum Hard Main Chassis is a dependable upgrade option.
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.

Does the aluminium chassis require different shock settings?

Stiffer chassis behaviour can affect spring rates and damping; you may need to soften springs or adjust shock oil to regain the previous ride balance.

Is thread locker recommended when fitting this chassis?

Use light thread locker on aluminium-to-metal fastenings where vibration is a concern, but avoid excessive use that could make future servicing difficult.

Will anodise scratches affect performance?

Superficial anodise damage is cosmetic only; structural damage such as cracks or bends should be addressed as it can change chassis alignment and handling.

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