Serpent SER903722 Rear Pulley Set for S989 Pair  [SER903722]

Service Replacement Rear Pulleys for S989

The Serpent SER903722 rear pulley set provides two matching pulleys to replace worn components on the S989, helping to stabilise belt routing and drivetrain response. It is a straightforward part for routine servicing.

Compatibility and Performance

Built to suit the Serpent S989 rear assembly, these pulleys restore correct belt alignment and reduce drivetrain lash that can affect throttle consistency on the circuit.

Fitting Notes and Care

Fitting the Serpent SER903722 pulley set requires basic workshop checks: clean the area, inspect bearings and fasteners, then verify belt condition and tension after road testing to ensure optimal results.