Designed using Sram`s Exogram technology, found in Sram Red cranks, the new SL Speed Stem weighs just 123g (100mm) while exceeding Zipp`s stiffness-to-weight standards | Includes stiff aluminum faceplate and titanium hardware Torx T25 heads for precise torque readings and ease of adjustment | Available in 6 lengths each with a 6 degree angle | Unidirectional carbon construction | | | | MODEL: SL SpeedBRAND: ZIPPPART NO: 570321 SUP NO: 00.6518.042.004 *