Super Record: an absolute legend, the groupset of champions. First introduced in 1973, reintroduced to raise the level, 11 speed. Innovative 11 speed parallelogram geometry operates with absolute precision . Black anodized forged aluminum upper body with oversized carbon fiber composite parallelogram link, which confers 150% great torsional rigidity . Carbon fiber composite outer cage and light alloy inner cage with titanium hanger, pivot bolt, screws and adjusters for the ultimate in lightweight. Specially lightened anti-vibration pulleys with ceramic bearings for maximum smoothness. Short cage (55mm pulley-pulley axle dimensions).