New Arrival! Tamiya 1/10 TRF420 4WD Belt Drive Onroad Chassis Kit EP #42345 The TRF420 is Tamiya’s successor to the popular TRF419 series which included the TRF419, TRF419X, and the TRF419XR. Our design team have come up with a host of brand-new parts designs that ensure this racing chassis takes the TRF Series of products to a different level. Quick Feature -1/10 scale 4WD R/C touring car chassis model assembly kit. -2 belt-driven 4WD drivetrain utilizes rear gear differential and front/center