Yokomo Y4-630A Lightweight Aluminum Spur Hub for YD-2/YD-4  [Y4-630A]

Yokomo Y4-630A Aluminum Spur Gear Hub for YD-2/YD-4
Price:
NZD$23.92
Brand:
Yokomo
Model:
Y4-630A
GTIN:
0639342214266
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Spares / Hop-ups - Yokomo - YD-2 category
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Precision Tune with the Yokomo Y4-630A

The Yokomo Y4-630A Aluminum Spur Gear Hub is engineered for YD-2 and YD-4 platforms, using black anodized aluminum to combine rigidity with low weight. It secures the spur gear to the main shaft, keeping the drivetrain aligned through corner exits and long straights.

Why Go Metal for the Spur Hub?

Swapping to aluminum lowers rotational inertia while providing a firmer mounting point than plastic hubs. The anodizing helps protect the surface where the spur mates to the hub, and the result is more predictable throttle response and reduced play in the gear train.

Compatibility Notes and Installation Tips

This hub is intended as a drop-in for Yokomo YD-2 and YD-4 cars, making upgrades quick for most hobbyists. Use proper torque on the clamp screws and verify your gear mesh after fitting to avoid premature wear.
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.

Can I use this hub on modified shafts?

If the shaft remains the standard diameter and keyway, the Y4-630A will fit. Custom shaft work may require checking clamp compatibility first.

Will the anodized finish affect gear alignment?

The anodized layer is thin and should not change fit; it mainly protects the surface and helps keep the hub seating consistent over time.

Is this a good upgrade for carpet racing?

Yes, the reduced rotational mass and improved rigidity suit tight, technical surfaces where precise throttle control and predictable handling matter.

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