Serpent 803173 - 21T Retro Series Anodized Pulley Shim  [SER803173]

Serpent SER803173 Pulley Shim 21T Aluminium Coated
Price:
AUD$30.89
Brand:
Serpent
Model:
SER803173
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Durable anodized pulley shim for the Vintage Series 720-09

The Serpent 803173 - 21T pulley shim is produced from anodized aluminium to provide a lightweight yet resilient component for Vintage Series 720-09 drivetrains. The anodized coating helps the shim resist surface wear during typical off-road and track use.

Smoother running with less debris buildup

Designed to limit grass, grit, and small stones from collecting on the teeth, the shim helps reduce belt abrasion and keeps maintenance intervals longer. That results in steadier belt engagement and more consistent performance session after session.

Is the Serpent 803173 - 21T easy to fit to my car?

Installation is straightforward for anyone familiar with pulley work. Remove the pulley, fit the shim making sure it sits flat, then reinstall and check alignment before running.

Will the shim change belt wear patterns?

Yes, by reducing debris contact the shim helps prevent uneven wear on belt teeth, which can extend belt life and improve reliability.

What routine checks should I perform after fitting?

Check shim seating, belt tracking, and tension after the first run and periodically after heavy use. Clean any trapped grit to maintain performance.

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