Cinelli dinamo seatpillar the monolithic aluminium 3d forged seatpost has an innovative single screw clamping system which acts simultaneously on the 4 elements of the clamp the two upper clamps are equipped with a snap closure system that minimises the pressure on the saddle rails guaranteeing secure closure with a minimum torque diameter 316mm material 3d forged aluminium 7050 finishing black anodized white painted length 350mm offset 15mm weight 250g