3Racing CRA-139 Crawler Ex Real Rear Axle Tube Tech Spec  [CRA-139]

3RACING Crawler Ex Real Rear Axle Tube - CRA-139
Price:
USD$5.00
Brand:
3Racing
Model:
CRA-139
Condition:
Brand New
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Precision Axle Tube Optimised for Setup and Tuning

The 3Racing CRA-139 for Crawler Ex Real is engineered to deliver repeatable axle location and reduced flex under load, aiding predictable handling during setup changes. Its dimensional accuracy supports precise bearing placement and alignment, which helps maintain consistent driveline angles. The CRA-139 is aimed at competitive hobbyists and tuners looking for a durable component that integrates cleanly with common crawler assemblies.

What are the critical tolerances to check when fitting?

Confirm bearing bore concentricity and axle shaft runout; small misalignments can affect gear engagement and wheel tracking, so measure and shim where necessary for optimal geometry.

Recommended upgrades to complement the CRA-139?

Pair the CRA-139 with quality sealed bearings, hardened axle shafts and properly indexed link mounting to capitalise on the improved rigidity and alignment the tube provides.

How does this part affect tuning options?

With reduced housing flex and consistent mounting points, you can tune link geometry and shock rates more predictably, allowing finer adjustments to roll centre and articulation behavior.