6061, drop forged, heat treated T6 aluminum alloy. Flip-flop reversible. Suitable for hybrid bikes. Extension mm: 90-100-110-120 Handlebar O.D.: Ø 31,7 mm (Newton standard) Fork steerer O.D.: Ø 28,6 mm (1’1/8) Extension angle: 82°; 42 mm fork clamp stack height Weigth (120 mm size): 169 grams New finish: POLISHED SILVER A touch of the fabulous 60s in today’s cycling. Extensions: 90-100-110-120 mm. New finish: POLISHED BLACK perfect to mach Big Piega polished black. Extensions: 90-100-110-120 mm. New finish: WHITE PAINTED Extensions: 90-100-110-120 mm.