Deda Vinci Stem Deda Vinci stem can be used for a fully internal cable set up or can be used with external cable set up. This lightweight alloy stem when used with the Vinci DNA carbon bar allows for all the brake and shift cables to be hidden from sight. To make the semi-integrated Vinci stem work with fully internal cable routing, you need a special DCR headset. The name comes from Deda Cable Routing, and allows for complete internal routing of up to 4 cables when combined with a Vinci (mechanical or electronic shift, mechanical or hydraulic brakes). Material: Aluminum 2014 seriesscrews: steel, blackAngle: 73 °Handlebar diameter: 31.7 mmFork steerer: 1 1/4 "(31.75mm), adapter included for 1 1/8"Height: (includes first headset top shim), 40mmSizes: 90mm, 100mm, 110mm, 120mm, 130mm, 140mmWeight: (110mm) 220gFinish: polish on black (POB)