FSA No.69 SRS Integrated Tapered HeadsetFSA No. 69 SRS Integrated Tapered Headset The FSA NO. 69SRS headset is suitable for internal cable routing with exit under the stem. The lower fork cone, like the upper clamping cone, is made of high quality aluminum. It is a special headset for frames with a continuous 1. 5" head tube. It is for tapered steerer tubes with a 1. 5" lower diameter 1 1 8" upper diameter. SRS Simple Routing: This system runs your brake lines and Bowden cables completely