14mm Tuning Weight 2.5g for TRF421X - Tamiya 3451593  [3451593]

14mm tuning weight for precise balance

This Tamiya 3451593 is a precisely sized 14mm hop-up weight with a mass of 2.5g, intended for the TRF421X touring chassis. It is an accessory to tweak weight distribution on 1/10 touring cars for setup refinement.

The weight fits the TRF421X hop-up positions, so confirm part number 3451593 before purchasing spares. It is a tuning item rather than a structural upgrade, allowing minor mass shifts without altering suspension parts.

Installation generally uses the chassis' existing mounting points: remove the factory or current hop-up weight from the TRF421X location and install this 14mm piece with the supplied or original screws. Re-check alignment and fastener tightness after an initial test run.

When tuning, this small 2.5g change can help refine front grip or rear stability depending on placement; pair adjustments with controlled testing and setup notes for repeatable results.