Hollow Graphite Center Drive Shaft SD-644WA for Yokomo DP-Series  [SD-644WA]

Yokomo SD-644WA Graphite Center Main Drive Shaft
Price:
AUD$43.22
Brand:
Yokomo
Model:
SD-644WA
GTIN:
0639342189502
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Spares / Hop-ups - Yokomo - DP-DPRA category
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How the center shaft affects handling

The Yokomo SD-644WA is a hollow graphite center main drive shaft that trims rotating mass to sharpen drivetrain response. The graphite construction keeps torsional stiffness while the matte finish helps the component blend with the chassis aesthetics.

Intended as a direct replacement for the standard center shaft on DP-series platforms, this part is chosen when reduced inertia and consistent center alignment are needed to influence transient behavior and acceleration feel.

Specifications

  • Item Center Main Drive Shaft
  • Material Graphite, hollow shaft with matte finish
  • Model Number SD-644WA
  • Compatibility DP-DP7C, DP-DP8, DP-DPRA, DP-DPRH, DP-GR35, DP-UF86A, DP-M786A, DP-HKS86A, DP-MKXA, DP-C33A, DP-SC430A, DP-TY180A, DP-JZX2A, DP-BNAA, DP-SDA, DP-EVXA, DP-DKPA, DP-BS15A, DP-REA7A, DP-DM13A, DP-ZCRA, DP-TYS15A, DP-BL34DA, DP-PS13A, DP-JZZ30A, DP-DR86A, DP-REAA, DP-ORCZ33A, DP-JZXA, DP-HKSA, DP-180SXA, DP-FC3SA, DP-S15A, DP-AE86A, MRTC-SD9, MRTC-86

Fit and tuning considerations

  • DP-DP7C
  • DP-DP8
  • DP-DPRA
  • DP-DPRH
  • DP-GR35
  • DP-UF86A
  • DP-M786A
  • DP-HKS86A
  • DP-MKXA
  • DP-C33A
  • DP-SC430A
  • DP-TY180A
  • DP-JZX2A
  • DP-BNAA
  • DP-SDA
  • DP-EVXA
  • DP-DKPA
  • DP-BS15A
  • DP-REA7A
  • DP-DM13A
  • DP-ZCRA
  • DP-TYS15A
  • DP-BL34DA
  • DP-PS13A
  • DP-JZZ30A
  • DP-DR86A
  • DP-REAA
  • DP-ORCZ33A
  • DP-JZXA
  • DP-HKSA
  • DP-180SXA
  • DP-FC3SA
  • DP-S15A
  • DP-AE86A
  • MRTC-SD9
  • MRTC-86

For drivers chasing crisper throttle transitions and reduced drivetrain inertia, the SD-644WA offers a lightweight center shaft option; always verify bearing locations and gear clearance during installation.
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 a lighter center shaft change traction feel?

A lower-mass center shaft can make acceleration feel quicker and slightly alter mid-corner rotation; pairing the shaft with appropriate gearing and suspension tuning yields the best results.

Do I need to change gear mesh after fitting?

Yes, confirm pinion and spur engagement after installation since any shift in axial position or bearing seating can affect mesh and drivetrain smoothness.

Is the SD-644WA suitable for competitive setups?

The design targets racers who prefer reduced rotating mass while retaining stiffness; it is appropriate for competition use when installed and checked for correct alignment.

Any quick setup checks after swapping shafts?

Spin the drivetrain by hand, check bearing play, and perform a brief low-speed run to listen for abnormal noises before full-power testing.

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