3RACING CRA-111 40T Two-Speed Bearing Gear Racing Spec  [CRA-111]

3RACING Crawler Ex Real 2 Speed Bearing Gear 40T - CRA-111
Price:
USD$5.70
Brand:
3Racing
Model:
CRA-111
Condition:
Brand New
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CRA-111 Racing Spec 40T Two-Speed Gear Summary

The 3Racing Crawler Ex Real 2-Speed Bearing Gear 40T (CRA-111) provides a race-focused replacement for two-speed transmissions where consistent engagement and shift repeatability matter. It is intended for tuners seeking predictable drivetrain response in competitive scenarios.

Precision and Setup Notes

The component is manufactured to tight tolerances to ensure accurate meshing and minimal backlash, supporting stable torque transfer during aggressive throttle control and technical sections. Proper mesh and bearing preload are important to extract the best performance.

Tuning and Compatibility Guidance

Fitment aligns with the Ex Real series geometry; when integrating with alternative setups, verify bearing dimensions and shaft spacing. For racing use, pair the CRA-111 with inspected bearings and a verified shifter calibration to maintain shift timing under load.

What tuning checks ensure optimal CRA-111 performance?

Verify axial play, confirm bearing fit, set minimal but safe gear mesh, and validate shifter throw to prevent undercut during high load shifts.

Are there recommended inspection intervals for competition use?

Inspect gear teeth and bearings after each event or after high-stress runs; replace any bearings showing play to avoid cascading drivetrain issues.

Any fitment tips when swapping into alternative gearboxes?

Check shaft runout and bearing seat diameters, mock-assemble to confirm axial clearance, and use shims where necessary to maintain precise axial alignment.