If you want to dial in weight distribution, the XRAY 357253 Brass M15x1 Adjusting Nut provides a neat, effective option. Specifically produced for the XB8 chassis, these brass nuts are noticeably heavier than aluminium versions and come as a matched pair for setup work.
Choosing brass adds concentrated mass where you need it, helping to lower the centre of gravity and stabilise the model through bends and fast sections. The added weight can make the car feel more composed when cornering or accelerating.
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