Nitto MT Column cold-forged aluminum with knurled clamp surface. For installing threadless stems on a threaded fork Approximately 25mm rise increase possible if used with spacers 130mm tall, cold-forged aluminum with knurled clamp surface Quill Insertion Diameter-25.4mm for 1-1-8 stems and 22.2 for 1 stems Steerer Clamp OD 25.4mm, for 1, 28.6mm fir 1-1-8
