Yokomo SG-A6490 90T AXON Precision Spur for MSR Chassis  [SG-A6490]

Yokomo SG-A6490 AXON TCS Spur gear 90T (Hard)
Price:
£4.41
Brand:
Yokomo
Model:
SG-A6490
GTIN:
3888
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - MSR-BD12 category
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Precision Spur Option: Yokomo SG-A6490 90T AXON

The Yokomo SG-A6490 90T AXON spur is a hard-type, 64-pitch component intended for MSR series chassis where consistent gear engagement is required. Its 90 teeth are formed to hold reliable geometry under repeated use.

Matching to MSR Platforms

Made with fitment for MSR-BD12, MSR-010, and MSR-010A in mind, this spur provides stable meshing characteristics when paired with appropriate pinions. The hardened material helps resist wear and preserves tooth profile over time.

Why Choose a Hard-Type Spur

A hard spur like the SG-A6490 can reduce tooth deformation and help keep drivetrain backlash predictable, which supports more consistent handling and tuning outcomes for serious hobbyists.
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 special gear mesh setup required for this spur?

Use standard mesh setup procedures: fit the pinion, set a small clearance across tooth faces, then tighten motor mount and recheck by rotating the drivetrain. No special tools are necessary.

Will this spur affect top speed or acceleration?

The spur tooth count affects final ratio. The SG-A6490 itself improves efficiency by reducing frictional losses, but speed and acceleration depend on the pinion you choose paired with this 90T spur.

Can I mix this spur with aftermarket pinions?

Yes, as long as the aftermarket pinion matches 64-pitch and fits your motor shaft. Verify center distance and tooth contact before running to avoid premature wear.

How often should I inspect the spur?

Check the spur after heavy sessions or impacts and perform routine visual inspections every few runs. Replace if teeth show flattening, chipping, or uneven wear.

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