LAZER ZX7.5 Gear Upgrade 48P-76T - Kyosho LA427-76  [KY-LA427-76]

Kyosho LA427-76 - Spur Gear(48P-76T/ZX7.5)
Price:
AUD$14.07
Brand:
Kyosho
Model:
KY-LA427-76
GTIN:
4548565524365
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $11.97 each $4.20 or 15%
3+ $11.37 each $8.10 or 19%
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Gear ratio and performance notes

The Kyosho LA427-76 spur gear is specified as 48P with 76 teeth and serves as a replacement for LAZER ZX7.5 compatible drive systems. This overview concentrates on how the part affects drivetrain ratio, fitment considerations, and practical tuning notes while avoiding unsupported claims.

Changing to a 76-tooth spur modifies the final drive ratio and mesh dynamics. Installers should check pinion engagement and axial alignment to minimise wear; correct mesh and secure fastening are primary determinants of driveline noise and mechanical efficiency.

Fitment checklist: confirm the shaft interface and ensure the mating pinion is 48-pitch, verify that bearing support in the gearbox is intact, and inspect the housing and any shims used to set mesh. Small adjustments to mesh or shim thickness can be used to tune acceleration versus top speed in predictable increments.

Maintenance guidance: watch for chipped or uneven teeth, keep gear faces clean from grit, and ensure set screws and fasteners are torqued to the appropriate level for your chassis to prevent the spur from slipping during use.
Remark :
Due to limited stock availability, please notice that some Kyosho 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.

How will a 76T spur affect acceleration and top speed?

Increasing tooth count generally raises top speed while slightly reducing initial acceleration, depending on motor and pinion choices. Use small steps in tooth changes to tune behavior.

Are there mesh tips for performance tuning?

For tuned setups, start with a minimal even gap, run-in gently to seat the gears, then make micro adjustments and test to find the quietest, most efficient setting for your track conditions.

Should I change shims when switching tooth counts?

Minor shim changes are common to re-establish correct mesh when altering spur size; measure engagement and adjust shims in small increments for predictable results.

What maintenance keeps the gear performing under tuning stress?

Regularly inspect teeth for wear from higher loads, clear debris after runs, and ensure mounting hardware remains tight to avoid efficiency losses and sudden failures.

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