3Racing CRA-301 Competition Rear Chassis Brace  [CRA-301]

3RACING Crawler Ex Real Aluminum Chassis Frame Rear Brace_F With Servo Mount - CRA-301
Price:
USD$13.90
Brand:
3Racing
Model:
CRA-301
Condition:
Brand New
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Performance-Focused Rear Brace for Tuning and Control

The 3Racing CRA-301 is a precision rear chassis brace engineered for Crawler Ex Real models, combining a rigid aluminium backbone with an integrated servo mount to reduce flex and maintain repeatable steering geometry under load. This component is aimed at hobbyists who tune handling and need a stable servo platform for consistent response.

Precision Engineering and Installation Notes

CNC-friendly aluminium construction provides a durable mating surface and consistent hole tolerances for reliable fitment. Install using the correct torque on steel hardware to avoid deformation; use a thread locker where frequent impacts may loosen fasteners during competitive runs.

Tuning Benefits and Compatibility

By limiting chassis twist at the rear, the CRA-301 sharpens steering feedback and aids setup consistency across different link and shock configurations. It is manufactured to align with Crawler Ex Real mounting points for a direct upgrade path while supporting a range of standard and high-torque digital servos.

What torque setting is recommended for mounting bolts?

Use a controlled torque appropriate for aluminium-to-steel joints, typically light to medium setting depending on screw size. Over-torquing can strip brass or aluminium threads; apply thread locker on exposed joints for competition use.

Does the brace affect servo centring or horn alignment?

The integrated mount reduces flex so centring and horn alignment remain stable run after run. After installation, re-centre the servo and verify horn position to ensure neutral steering geometry.

Are there any recommended upgrades to pair with this brace?

Pairing the CRA-301 with stiffer links, hardened steering components or a high-torque metal-geared servo yields the best results for competitive crawling where reduced chassis flex and precise steering inputs matter.