One Up Components Direct Mount Stem Precision control for max speed The One Up Components Direct Mount Stem was developed specifically for the needs of World Cup DH athletes. This direct-mount stem weighs in at 155 grams and is constructed from 6000-series aluminum for increased durability. It has a simple design with a 0mm stack that can be adjusted up to 10mm rise with a Spacer Kit. This stem is only available in 45mm length. Features Durable design constructed from 6000-series aluminum Can be adjusted from 0-10mm rise with a Spacer Kit Downhill-rated for riding through the most challenging conditions Specifications Rise0-10mm Stack (with Spacer kit)Length45mm Weight155 grams Bar Clamp Diameter35mm (60mm Clamp Width)Intended Use Downhill Material6000-Series Aluminum | Oneup Components | Direct Mount Stem 45Mm | Aluminum