YZ-4 Hard Anodized Aluminium Main Shaft - Yokomo Z4-644H [Z4-644H]

Price:

AUD$5.34

Brand:

Yokomo

Model:

Z4-644H

GTIN:

3888

Not Available

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Description
FAQ

Drive component notes for YZ-4

Offered as Yokomo Z4-644H, this optional main shaft is machined from aluminium and finished with hard anodising to lower weight and resist surface wear. It is intended for drivetrain installation on YZ-4 models.

By lowering the rotating mass on the gearbox axis the shaft can improve throttle response and sensitivity during tuning sessions. The performance effect is modest and focused on refined drivability rather than major mechanical change.

Installation: the part replaces the stock main shaft and requires standard gearbox disassembly to remove the old shaft and bearings. Check bearing alignment and clearance after fitting and ensure secure seating prior to use. The original information does not require custom modifications.

Compatibility

B-YZ4
YZ-4

Remark :

Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Is this aluminium shaft durable enough for regular track use?

The aluminium core with hard anodised surface increases wear resistance compared with untreated aluminium, but durability versus steel depends on impacts and usage; it is lighter but not inherently tougher than steel in crash scenarios.

Will changing to this shaft affect gear feel or setup?

Yes. Reducing rotating inertia can alter throttle feel and responsiveness, allowing finer tuning of drive characteristics. Expect incremental rather than radical differences.