Circuit Sports Mazda Miata NA/NB adjustable tubular rear upper control arms is a direct
replacement of the factory unit.
The new RUCA uses a Teflon spherical Heim joint with steel
spacers to replace stock rubber bushings to guarantee long lasting quality and allow your
suspension to move freely yet precisely to ensure controlled suspension movement that you
would require in motorsports.
The rear upper control arms allow full adjustability to camber
settings (+/-) to carefully tune the vehicle to increase traction efforts, improvements in
high-speed stability, and cornering effectiveness. The arms are designed to resists flexing with
its tubular construction to withstand the stress under load.
The control arm are finished off with
a powder coated high gloss blue, as a layer of protection for rust prevention and provides
durable structural integrity against the elements.