That's an extra front side direct pully element of the TRF420. Take advantage of this system to restore damaged or utilized components within drivetrain.
• TRF420 Front Direct Pulley x1
• 0.2mm & 0.3mm Shims x2 each
• Front direct pulley and direct owner are a plastic part for a weight cost savings of 2g when compared to split components applied to past generation of TRF framework.
• Direct cups are now actually screw-attached (wound up being 2x9.8mm pins on past framework), allowing their replacement without prerequisite to remove the direct pulley component.
• worthy of TRF420 and TA07 framework cars.