DP-Series Center Drive Shaft Upgrade SD-644WA Compatible with Yokomo  [SD-644WA]

Yokomo SD-644WA Graphite Center Main Drive Shaft
Price:
NZD$50.60
Brand:
Yokomo
Model:
SD-644WA
GTIN:
0639342189502
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Spares / Hop-ups - Yokomo - DP-DPRA category
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Design and durability highlights

The Yokomo SD-644WA uses a hollow graphite shaft to reduce rotating mass while keeping the center drivetrain rigid and serviceable. The graphite parts are finished with a subdued matte texture to avoid reflective surfaces on the chassis.

Functionally this shaft replaces the standard center shaft in compatible DP-series platforms, providing a lighter rotating component where lower inertia and sustained alignment are priorities during extended running sessions.

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

Compatibility Notes

  • 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

The SD-644WA is aimed at racers wanting a lighter center drivetrain component with a muted appearance; always double-check bearing fits and gear mesh during installation to preserve alignment and longevity.
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.

What makes the SD-644WA lighter than stock?

The hollow graphite shaft reduces mass at the rotating center section compared to solid metal shafts, lowering inertia while keeping torsional rigidity high.

How does the matte finish hold up over time?

The subdued matte coating resists obvious scuffs under normal use; clean with a soft cloth and avoid solvents that could alter the surface texture.

Are there any wear points to monitor?

Check bearing seats for play and inspect the shaft ends for wear where pins or couplers interface; early detection keeps alignment stable.

Can the SD-644WA handle track abuse?

The shaft is engineered for RC touring drivetrains; while lighter, it retains sufficient rigidity for normal competitive use—avoid impacts that would bend or stress the shaft beyond design intent.

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