captain hook

Zitat von:
http://www.argon18bike.com/innovatio...-headtube.html


3D Headtube
The 3D Headtube* (*Patent pending) is an Argon 18 exclusive, a simple but clever mechanical solution for perfect adjustment of handlebar height for every rider. The device is a structural extension of the headtube. It keeps the headset bearings close to the stem, even when the cyclist needs a more upright position. Three positions are available: 0mm, 10mm and 20mm.