Yokomo B9-RTC-02A RTC Aluminum Lower Caster block  [B9-RTC-02A]

Aluminum lower caster block for BD9

This aluminum lower caster block is an RC-scale replacement part intended for Yokomo BD9 2019 platforms. It serves as the mounting base when fitting the RCT assembly to the rear, providing the interface between the steering block and the suspension arm.

Made for hobby use, the part replaces the stock lower caster block to offer a metal mounting point that resists deformation under load. In practice it helps maintain caster and toe geometry when the rear steering components are installed or adjusted.

Installation is straightforward: remove the original lower caster block from the suspension arm, position the aluminum unit, and secure using the existing fasteners and hardware from the chassis. Check alignment and fastener torque after first run to verify geometry remains consistent.

Compatibility

• MRTC-BD919
• MRTC-BD919S
• MRTC-BD10FF

Use this lower caster block when you need a durable metal mounting point for rear RCT installations on supported Yokomo BD9 series chassis, keeping steering geometry stable under load.