Cinelli dinamo 318 stem the 3d forged stem is made with 7050 t6 aluminium alloy the variable thickness and the oval section make it extremely light accurate and reliable in every riding condition clamp diameter 318mm bar clamp diameter 286mm 1 18 stem angle 83deg 97deg material forged in aluminium alloy 7075 t6 finishing black anodized or white painted bolts front m5 rear m5 weight 100g 100mm