Serpent 803173 - 21T Anodized Aluminium Pulley Shim Classic Fit [SER803173]

Serpent SER803173 Pulley Shim 21T Aluminium Coated

Price:

£15.37

Brand:

Serpent

Model:

SER803173

Not Available

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Spares / Hop-ups - Serpent - Vintage Series - 720-09 200mm GP (SER803009)

Anodized aluminium shim tuned for Vintage Series 720-09

The Serpent 803173 - 21T pulley shim is crafted from anodized aluminium to combine low mass with strong surface protection for Vintage Series 720-09 drivetrains. The anodized layer improves scratch and wear resistance so the shim endures repeated running.

Less debris, longer-lasting belts

The shim reduces the tendency for sand, grass, and grit to lodge on pulley teeth, which in turn lowers belt abrasion and reduces the need for frequent cleaning. That helps keep belt life and drivetrain reliability higher between services.

Does this replace factory shims on the Vintage Series 720-09?

This shim is designed as an upgrade for the Vintage Series 720-09. It can replace stock shims where dimensions match, but confirm fit before final assembly.

What maintenance benefits can I expect?

Expect reduced debris accumulation around the pulley which means fewer belt cleanings and potentially longer belt life under typical running conditions.

Any advice for track use versus casual driving?

For track use check shim and belt condition more often due to higher loads. For casual use periodic inspections and cleaning are usually sufficient to maintain performance.