AM Medius S3M 348mm Belt Set White (2) - Arrowmax AM-910038  [AM-910038]

Medius S3M 348mm timing belts

The Arrowmax AM-910038 AM Medius kit supplies two S3M profile timing belts intended for belt-driven scale RC drivetrains. Included are 2 pieces of 348mm white rubber belts, made to engage S3M pulleys commonly fitted to model transmissions.

These belts perform timing and power transfer duties, ensuring pulleys rotate in sync, allowing tension adjustments for setup tuning, and offering a white finish to aid inspection and alignment. They should be used where the S3M tooth form and a 348mm loop length suit the pulley layout on your model.

Fitting is simple on compatible belt systems: route the belt over the S3M pulleys, set an approximate tension, and carry out a low-speed check to verify tracking and load distribution before proceeding to full-speed operation. Small tension adjustments affect drivetrain compliance and handling response; aim for even tension and avoid contact with pulley flanges.

As a replacement or setup component, this two-piece Medius belt set offers a straightforward way to maintain accurate timing in S3M-based RC drivetrains that require a 348mm loop.