Cinelli vai stemthe vai stem is made from 3d forged 6061 t6 aluminium alloy this makes it extremely light but incredibly strong it features a 4 bolt faceplate to keep it solid and secure while the black anodised finish and etched cinelli branding on the faceplate give it a sleek style features material forged in aluminium alloy 6061 t6 clamp diameter bar 31 8mm clamp diameter steerer 118 stem angle 8496 bolts front m5 rear m6 weight 145gbuy cinelli components from chain reaction