Adjustable backrests LighTech Racing: lightness and performance, ideal for the competition!Made in aluminium 7075 stained in the mass: guarantee of extra-standard stiffness, safety and performanceMulti-block construction: strong resistance, more rigidity, better appearance and better feeling for each driver“Track System” LighTech: 8 possibilities of precise and fast position adjustment – only 1 screws to handle SKF