3Racing Sakura Zero 38T One Way Pulley SAK-59/A Race Tuning Part  [SAK-59/A]

3RACING Sakura Zero Sakura Zero One Way Pulley - 38T - SAK-59/A
Price:
USD$2.50
Brand:
3Racing
Model:
SAK-59/A
Condition:
Brand New
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Technical note on 3Racing SAK-59/A integration

The 3Racing Sakura Zero One Way Pulley - 38T, SAK-59/A, is intended for racers seeking measurable drivetrain refinement. The design reduces parasitic load and helps stabilize torque transfer during transient inputs, aiding consistent lap delivery when combined with dedicated setup changes.

Performance characteristics and tuning

The 38T tooth count balances freewheel behaviour against positive engagement to suit a range of track profiles. Tuners can expect reduced drag at the driven elements and improved throttle traceability, which supports finer suspension and diff adjustments for competitive applications.

Installation considerations for race builds

Fitment to the Sakura Zero platform is direct, but precise alignment and bearing condition are critical for peak performance. Verify shaft concentricity and clearance, and perform baseline runs to adjust slipper and differential settings to match the SAK-59/A behaviour.

How should I adjust the slipper when fitting this pulley?

Start with your standard race slipper setting, then reduce slip incrementally while monitoring driveability. The pulley lowers drag so less slip may be required to maintain traction on corner exit.

What checks are vital after installation?

Inspect pulley runout, confirm bearing smoothness and ensure no axial play exists. Small misalignments can negate benefits, so precise assembly is important.

Will this change diff tuning requirements?

Yes, expect to revisit diff preload and gear mesh. The altered freewheel characteristics influence how torque is distributed, so adjust diff settings to retain desired cornering balance.