FSA NS ACR Stem Aerodynamic Cable Routing The cables on your bike can cause extra drag when they're exposed. For the most aerodynamic setup possible, you'll want to route the cables through the stem. The FSA NS ACR Stem comes with Aerodynamic Cable Routing Technology and is compatible with K-Force Light ACR Compact, SL-K ACR Compact, Energy ACR Compact, K-Wing AGX, and K-Wing AGX Handlebars. This will allow you to route the cables through your bars and stem and directly into your frame for the cleanest build. The NS ACR Stem has a low-profile frontal area, no rotation limit, Chromoly hardware, and is made from lightweight 6061 T6 aluminum. Features ACR Technology so you can route the cables through the stem for a more aerodynamic setup Designed for specific frames and headsets Compatible with K-Force Light ACR Compact, SL-K ACR Compact, Energy ACR Compact, K-Wing AGX, and K-Wing AGX Handlebars SPECIFICATIONSLength70, 80, 90, 100, 110, 120, 130, 140mm Rise-6degBar Clamp Diameter31. 8mm Stack30mm Material6061 T6 Aluminum, Chromoly Hardware Intended Use Road, Gravel Weight235g (100mm) | Fsa | Ns Acr Stem | Black | 31. 8Mm X 80Mm, - 6 Degree | Aluminum