Yokomo S4-01077A 77mm Front Universal Shaft for YZ-4S - Race Ready Dogbones  [S4-01077A]

Yokomo S4-01077A Front Universal Shaft (77mm bone) for YZ-4S
Price:
AUD$46.66
Brand:
Yokomo
Model:
S4-01077A
GTIN:
0639342209811
Condition:
Brand New
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Front Universal Shaft Upgrade for YZ-4S by Yokomo S4-01077A

The Yokomo S4-01077A replaces stock front shafts with a 77mm dogbone engineered for durability and cleaner drivetrain response. Intended for the YZ-4S chassis, these shafts fit directly and help maintain consistent power transfer during aggressive runs. The pair provides a straightforward way to reduce drivetrain play and keep lap times steady.

Specifications

  • Length: 77mm
  • Compatibility: YZ-4S Chassis
  • Included: 2 pieces
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.

Do these shafts require any chassis modifications to fit?

No chassis cutting is usually required for YZ-4S setups; the S4-01077A is produced to match the stock front shaft geometry for a direct fit.

Will changing to these affect gear ratio or motor tuning?

The shaft length does not alter gear ratio or motor timing, but improved drivetrain stiffness can change how power is felt, so small setup tweaks may be beneficial.

How many shafts are supplied and how are they packaged?

The package includes two 77mm front universal shafts, supplied ready for installation and boxed with basic protective packing.

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