Dmr defy 50 mountain bike stemthe ideal addition to your mountain bike mtb, the defy 50 stem features a durable 35mm clamping standard, for exceptionally smooth handling over tough terrains. Made from lightweight and hard wearing cnc machined 6061 alloy it benefits from a low stack height, short 50mm length and low 5 degree rise. Designed for modern geometrydesigned for use with modern frames that feature longer top tubes for increased stability, the defy 50 offers precise control and is cnc machined to reduce weight. Also, to prevent knee injuries, the sides are further cnc machined to enable the clamping bolts to sit internally.features material cnc 6061 alloy top close clamp design stem cap included yesstack height 31mm stem anglereach 50mm rise 5mm dimensions 95mm long 55mm wide 54mm tallweight 189gbuy dmr components from chain reaction cycles, the world's largest online bike store.