TRF420 E-Parts Rear Uprights, RC spare parts

TRF420 E-Parts Rear Uprights are replacement suspension components for the TRF420 racing car chassis, made to return the rear end to its intended mounting layout. The carbon fiber-reinforced resin construction focuses on rigidity, so the upright keeps its shape where the shaft and bearing seats need stable support during running. Each set contains 1 TRF420 E Parts sprue, supplying the rear upright pieces shown for this chassis family. The bearing positions are precisely aligned, a detail that matters at the rear hub area where smooth rotation and efficient transfer depend on accurate seating. These parts are designed for use with 3 mm diameter shafts, and they work with cars using Item 51639 TRF420 D Parts suspension arms. That combination makes them a direct maintenance choice when worn or damaged rear suspension hardware needs to be replaced with the correct matching parts. On a workshop bench, these uprights fit into a focused chassis refresh where the rear suspension is being rebuilt around the original TRF420 geometry. They also suit race-day spares storage, where keeping the right molded parts on hand helps return the car to running condition with the intended component match.