Track-Focused Pulley Serpent 903198 - 51T Solid Axle Pulley for Serpent 960  [SER903198]

Serpent SER903198 Pulley Solid Axle 51T Fast
Price:
NZD$16.33
Brand:
Serpent
Model:
SER903198
Condition:
Brand New
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Speed-Focused Upgrade for the 960

Owners tuning a Serpent 960 will find the 51T solid axle pulley an effective rear pulley replacement. The rib-free, streamlined shape is aimed at cutting aerodynamic losses, which can result in a top speed gain of about 3km/h for cars sensitive to airflow around the rear axle.

Flat Disc Shape for Smoother Rotation

Crafted from composite material, the pulley presents a disc-like face that minimizes turbulent flow. Removing ribs and interruptions on the surface helps the pulley spin with less resistance, supporting higher peak speeds and steadier drivetrain behavior.

 

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How much speed increase is realistic with this pulley?

In practice you can see a modest increase, typically around 3km/h, depending on gearing and track conditions due to the reduced aerodynamic drag.

Will it affect handling or just top speed?

The main effect is on top speed and drivetrain efficiency; handling should remain unchanged, though you may notice different throttle response at high speed.

Is any balancing required after fitting?

Check that the pulley runs true after installation. If you detect vibration, minor balancing or re-seating will resolve it.

Can it be used on other classic models?

It is tailored for the Serpent 960 series but may fit other cars with compatible axle and pulley dimensions. Always confirm fit before final installation.

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