TRF421X Front Direct Cup Upgrade for TRF421 - Tamiya 51763  [51763]

Front cup features and longevity

This set of front direct cups is produced as a spare compatible with the TRF421X chassis and can also be used on TRF421 builds as a durable replacement. The kit includes 2 pcs front direct cups plus 2 aluminum collars as noted by the manufacturer.

The cups are made from steel to add rigidity to the front drivetrain when fitted. For installations on a TRF421 chassis the manufacturer recommends compatible companion parts: Item 51761 46mm Drive Shafts for Double Cardan Joint Shafts (2 pcs) (Ball Bearing Type) and Item 51762 Ball Bearing Set for Universal Shafts to ensure full compatibility.

Confirm fitment against the listed chassis models before fitting. These components are intended for repair, replacement of worn drivetrain elements, or to extend service life and stiffness in touring car drivetrains.