Tamiya 51640 TRF420 Rear Upright Set SP-1640 Race Upgrade  [51640]

Stiffer rear uprights for improved chassis balance

The Tamiya 51640 TRF420 E-Parts rear uprights are made for tuners looking to firm up the rear end of a TRF420. Constructed from carbon fibre reinforced plastic, these parts help keep suspension geometry consistent under load for cleaner cornering.

Optimised bearing alignment for smoother roll

These uprights position bearings precisely to cut down on unwanted movement and friction. The accurate fit supports freer wheel rotation and more predictable handling through fast sections of the track.

Compatible with 3mm shafts and TRF420 D arms

Designed to accept 3mm diameter shafts (sold separately as Item 51637), these uprights also work with TRF420 D Parts (Suspension Arms). That makes them straightforward to mix into existing TRF420 builds when adjusting suspension characteristics.