I found this on
Welcome to Roadster-NC.com (very usefull for me)
This is true for the mx-5 NC (2006+), but I supposed is the same with the NA / NB model too (chassis is very good on miata, with low weight, and few but fun horsepower)
Quote:
The front suspension is a double wishbone design similar to that used previously. The wishbones are now slightly longer to give a more linear change to toe, caster, and camber as the wheel moves up and down. Unlike the previous steel wishbones which tended to suffer from rust, the NC's wishbones are made of aluminium. The top wishbone is a semi-solid cast piece and the larger lower wishbone is forged for added strength. A hollow tube anti-roll bar is used to save weight.
The rear suspension is a totally new multi-link design that allowed the engineers to optimise the geometry. Instead of double wishbones there are now 5 link bars for each rear wheel connecting them to the rear subframe. As with the front end, the link bars are designed long to help with linearity. The rear subframe is made of hydroformed steel and bolted to the body at six points to increase chassis stiffness.
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