The Tamiya 54443 Carbon Reinforced E Parts give the XV-01 chassis a tougher rear hub area. Replacing the stock uprights with these carbon parts reduces flex and helps the car feel more composed when pushing the limits.
Carbon reinforcement raises component stiffness so the uprights resist deformation under high loads. This translates to better consistency when powering out of corners and hitting rough sections.
These uprights are made for the XV-01 and fit the factory mounting points, so installation is a straightforward exchange. Regular hobbyists can fit them quickly as part of routine upgrades.
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