The XRAY 302770 X4 Swiss 7075 T6 Aluminium Lower Bulkhead gives drivers tighter control over chassis balance and geometry. It is aimed at those refining setup for consistent lap times and predictable handling.
Forged from Swiss 7075 T6 aluminium, the component is both light and durable. Built-in centring pins make fitting straightforward and the very low anti-roll bar mount places the wire under the drive shafts to reduce overall height and stabilise the car during cornering.
Milled 1mm grooves for the ball bearing hubs shift the bulkheads 1mm closer to the chassis centre line per side. That small adjustment tightens tolerances and reinforces chassis rigidity, which helps keep geometry consistent under load.
This part is made to fit the front right and rear left of the XRAY X4 platform, suitable for X4 2022 upgrades or replacements. The black anodised coating provides a neat look while protecting the aluminium surface.
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