Serpent SER903721 Side Pulley Set (2) Compatible with S989  [SER903721]

Serpent SER903721 Pulley-set Side (2) S989
Price:
AUD$11.98
Brand:
Serpent
Model:
SER903721
Condition:
Brand New
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Practical Pulley Replacement for Tough Use

The Serpent SER903721 side pulley set supplies a matched pair tailored to the S989 chassis so your drivetrain stays true under load. These pulleys are intended to cope with repeated running and help keep handling predictable during extended sessions.

Application and Performance Impact

Matched to S989 spacing and shaft dimensions, the pulleys aid in smooth torque transfer and limit unwanted slop. Replace worn pulleys to avoid power loss and uneven drivetrain response on rough surfaces.

Installation Tips for Long Life

Clean shafting and check bearing fit before installing the Serpent SER903721 pulleys. Ensure proper alignment and recheck after a few runs to catch any settling or loosening early.

Will upgrades change gear mesh?

Upgraded pulleys of the same dimensions should not alter gear mesh, but always confirm spacing and clearances when changing parts.

How do I inspect pulleys for damage?

Examine faces for scoring, check bore roundness, and spin for bearing roughness. Any wobble or edge wear indicates replacement is needed.

Should I replace both pulleys at once?

Replacing the pair helps keep symmetry in the drivetrain and avoids uneven wear; swapping only one side can lead to imbalance.

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