3Racing SAK-U121A Sakura Ultimate Main Shaft M5 x 30 - Track Tuned  [SAK-U121A]

3RACING Sakura Ultimate M5 x 30 Main Shaft - SAK-U121A
Price:
USD$2.50
Brand:
3Racing
Model:
SAK-U121A
Condition:
Brand New
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Race Oriented Main Shaft for Sakura Ultimate

The 3Racing SAK-U121A Sakura Ultimate Main Shaft is manufactured to close dimensional tolerances to support repeatable drivetrain performance. This M5 x 30 shaft is intended for racers who prioritise predictable response and clean fit in the Sakura Ultimate chassis.

Precision and Predictability

With attention to machining quality, the 3Racing main shaft reduces unwanted play and contributes to a more consistent power transfer. That stability helps when dialling in chassis setup and tyre choice for competitive use.

Integration with Racing Setups

Designed for direct fitment, the shaft allows quick swapping during maintenance and setup sessions. Its accurate sizing aids in preserving drivetrain geometry so tuning changes translate reliably to on-track performance.

What should I verify after installation?

Confirm axial and radial alignment, ensure free rotation without binding, and verify that retaining hardware is torqued evenly to avoid misalignment under load.

How does shaft tolerance affect handling?

Tighter shaft tolerances reduce drivetrain lash and improve repeatability in throttle response, which is useful when refining suspension and differential settings for lap time gains.

Any setup advice for competition use?

Maintain clean mating surfaces, check bearings for minimal play, and re-evaluate after a few heat cycles. Small adjustments to diff and camber can be more effective when drivetrain inputs are consistent.

Is balancing required for this shaft?

Standard installation does not normally require balancing, but if you use ultra-high rpm setups inspect for runout and balance as part of a detailed high speed build routine.