Serpent 903390 Centax Ultra Clutch Set - Competition Clutch Kit  [SER903390]

Serpent SER903390 Centax set Ultra 1/8
Price:
£72.80
Brand:
Serpent
Model:
SER903390
Condition:
Brand New
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High Precision Clutch for 1/8 Competition Cars

The Serpent 903390 Centax Ultra Clutch Set is aimed at racers seeking precise clutch control in 1/8 scale competition. The kit includes an aluminium clutch-bell, XP clutch shoe, and machined carbon flyweights to lower inertia and enhance responsiveness during acceleration phases.

Consistent Power Delivery

With attention to material selection and machining tolerances, the Centax Ultra delivers consistent engagement and predictable behaviour under load. The aluminium bell assists with cooling during extended runs and the carbon flyweights maintain consistent bite points.

Compatibility and Tuning Advice

Made for the Serpent 966 chassis, this clutch follows Centax-2 style installation and tuning. Start with familiar baseline settings, then fine tune shoe clearance and spring rates to match track grip and engine characteristics.

Specifications

  • Material: Aluminum clutch-bell, machined carbon flyweights
  • Compatibility: 1/8 scale Serpent 966
  • Includes: Complete clutch set with XP clutch shoe

For competitive teams and experienced drivers, the Serpent 903390 Centax Ultra Clutch Set provides a reliable, lightweight clutch option that supports precise setup and consistent race performance.

Upgrades to clutch response and reduced rotating mass can help lap times when matched with correct engine mapping and clutch tune, but gains depend on driver setup and track conditions.
It is best to use the supplied aluminium bell for intended fit and cooling. Using a different bell may alter engagement and heat characteristics, so check dimensions carefully if mixing parts.
Inspect the bell for scoring, clean carbon debris from flyweights, check shoe wear, and confirm no play in the clutch assembly to ensure consistent performance across heats.
Replacement XP clutch shoes and related hardware can be sourced through Serpent spares; match part numbers to the 903390 kit when ordering to ensure correct fit.

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