Ragley logo seat clamp new for 2015 the ragley seat clamp has subtle graphics that will suit any frame features a brass barrel to prevent stripping and comes in 318 or 349 sizes it also features an offset slot which moves the pressure away from the frame slot to prevent pressure points resulting in seatpost damage features subtle ragley graphics offset slot helps to prevent pressure points specification material 6000 series alloy sizes 31 8mm or 34 9mm finish black anodised weight 2