What role do the metal linkages at both ends of MJX Hyper Go 10210 chassis play?

Why does MJX Hyper Go 10210 have metal linkages on chassis ends?

The metal linkages installed at the front and rear of the MJX Hyper Go 10210 chassis significantly enhance the tear resistance at the joints between the suspension system and the main chassis. This greatly reduces the probability of connection point damage during severe impacts.

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