Precision Steel Idler Upgrade - Tamiya 22087 - 33T Steel Idler Gear for BB01/TD2/TD4/XV-01 Models  [22087]

Replace the plastic idler with a precision steel unit

The Tamiya 33T steel idler gives RC enthusiasts a tough replacement for the weaker plastic part fitted to BB-01, TD2/TD4 and XV-01 chassis. It helps maintain accurate gear engagement and reduces the chance of tooth deformation.

Compatibility notes and fitting advice

This steel 33T idler is compatible with BB-01, TD2/TD4 and XV-01 layouts. When removing the stock MA27 plastic idler, check shims and bearing positions and install the steel gear ensuring correct mesh to avoid premature wear elsewhere.

Advantages of steel in drivetrains

Steel offers higher hardness and wear resistance than plastic, which translates into longer service intervals and steadier drivetrain behaviour under load. This is helpful for higher power or frequent running schedules.