Tamiya 51640 TRF420 Performance Rear Uprights SP-1640  [51640]

High-stiffness rear uprights for TRF420 chassis

The Tamiya 51640 TRF420 E-Parts rear uprights provide increased rigidity for the TRF420 platform. Manufactured from carbon fibre reinforced plastic, these uprights aim to stabilise the rear suspension and preserve tuned suspension geometry under load.

Precision fit for reduced drag on bearings

With carefully positioned bearing seats, the rear uprights lower unwanted movement and friction in the drive train. That accuracy promotes smoother wheel spin and more responsive steering inputs.

Fits 3mm shafts and pairs with TRF420 D arms

These uprights accept 3mm diameter shafts, available separately as Item 51637, and integrate with TRF420 D Parts (Suspension Arms). Their compatibility makes them a practical upgrade when refining balance or durability.