Yokomo S4-303DCBA Bearing Side Drive Cup Upgrade  [S4-303DCBA]

Yokomo S4-303DCBA Slipper Drive Cup (Bearing Side) for YZ-4S
Price:
£7.32
Brand:
Yokomo
Model:
S4-303DCBA
GTIN:
0639342210152
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YZ-4S Bearing-Side Drive Cup by Yokomo

The Yokomo S4-303DCBA Slipper Drive Cup is produced for the YZ-4S range, with a focus on the bearing side to promote steadier power transfer. It supports consistent drivetrain behaviour during throttle bursts and helps reduce component fatigue over time. Suitable for racers and regular club drivers alike.

Fit Details and Supported Chassis

The S4-303DCBA is compatible with known YZ-4S platforms including B-YZ4SF, B-YZ4SF2-1, MOR-010, and MOR-020. Its precise fit helps minimise play in the driveline and maintains alignment with factory parts.
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.

Will this part affect handling or balance?

Fitting the S4-303DCBA is focused on drivetrain reliability and should not noticeably change chassis balance. Handling changes are unlikely unless additional drivetrain settings are altered during installation.

Can I use aftermarket slipper assemblies with this cup?

This cup is intended for the bearing side of YZ-4S setups. It may work with some aftermarket assemblies that share the same bearing-side geometry, but always confirm compatibility before fitting.

How often should I inspect the drive cup?

Check the drive cup and surrounding drivetrain parts during routine servicing or after heavy runs. Look for wear on contact points and ensure bearings remain tight to preserve the S4-303DCBA's performance.

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