Matching Zipp Service Course SL bars and stems in both form and function. Dual bolt, low profile micro adjust cradle. Machined internal shaft to reduce weight. Titanium hardware. 3D forged from a single piece of AL-7050. Minimum insertion length is 90mm. Note: torque for the seat rails is 7Nm. Item Specifications: Defined Color: Black, Offset (mm): 20, Diameter: 27.2, Color: Black, Material: Carbon, Clamp Style: Standard Rails, Length: 400,