TRF421 Fr. Direct Pulley 37T, RC spare part

The TRF421 Fr. Direct Pulley 37T is a dedicated RC spare part for drivetrain service on compatible model setups. Its circular pulley form, central hub and evenly spaced outer teeth are built for direct engagement with a toothed belt, so rotational motion can be transferred through the front drive section with the specified 37T configuration. The black component uses a perforated inner disc with multiple round cutouts, a detail that removes material from the rotating section while keeping the outer toothed ring and hub structure intact. The raised hub section provides the mounting point, and the toothed circumference guides the belt along a defined path instead of relying on friction contact. This makes the part relevant wherever a worn pulley, damaged teeth or drivetrain refresh calls for a like-for-like replacement. The studio image also shows a ring-shaped companion part with an inner groove, indicating a matching hardware element within the spare-part set. In workshop use, the pulley suits routine maintenance, rebuilds and parts replacement after extended running sessions. It fits naturally into a spares box for racers and tuners who keep belt-drive assemblies working with the correct front transmission hardware.

 

Warning! Not suitable for children under 14 years.