Tamiya SP-1642 TRF420 F 37T Front Direct Pulley - Spare Part for Track Use  [51642]

Light 37T direct pulley for TRF420 upgrades

The Tamiya TRF420 F Direct Pulley (37T) provides a practical drivetrain upgrade for TRF420 and TA07 chassis. This replacement part is designed to enhance efficiency while keeping installation straightforward.

Integrated plastic layout to cut mass

The pulley uses an integrated plastic construction that trims about 2g versus older multi-piece versions. That small weight saving can help reduce rotating mass and makes assembly neater.

Screw-mounted direct cups for quicker service

Instead of pins, the direct cups are secured with screws, so you can replace worn cups without taking the whole pulley apart. This saves time when you need to service the drivetrain between sessions.

Where to fit this pulley

Intended for TRF420 and TA07 chassis, this pulley is suitable when replacing worn parts or tuning an existing setup. It offers a direct fit for those Tamiya platforms without extra modification.