Ritchey Comp Logic-E Cartridge Headset Upper 1 1/8 inch Pressfit - ZS44/28.6

Semi-integrated Ritchey Logic-E 1 1/8 inch pressfit headset upper for STEPS or MTN Di2 integration. Compatible with frame headtubes 1-1/8" (ZS42/28.6) and optimized with Bar Logic-E.

Logic-E Integration Kit:
The Logic-E Integration Kit was designed to allow Shimano Di2 and STEPS cables to be concealed from view and from the wind while protecting them from damage. Tom Ritchey designed a unique system that allows the cables to be run internally from the stem into standard frames without requiring the frame or fork to be modified. A flexible, adhesive, cable guide included with Logic-E headset, allows routing of Shimano cable under stem to top cap. The Di2 Integration Kit is compatible with any Ritchey stem. Thus, a wide variety of handlebars can be used.

Ahead-headset building classes:
Ahead-headsets are divided into the "classical" building class, the semi integrated "Press Fit" and the full integrated "Drop In" headsets. The "classical" version has a bearing which is located outside the steerer tube. "Press Fit" and "Drop In" headset bearings are located inside the steerer tube which results in a lower stack height. In contrast to "Press Fit" headsets "Drop In" headsets don't have to be pressed in. The bearing rests directly on the angled (36° or 45°) surface of the steerer tube. The most common "Drop In" versions are called "Drop In Campy" for Campagnolo Hiddensets and "Cane Creek".
For more detailed information please contact our service team.

ZS44/28.6
Material: Aluminium
stainless steel
Weight supplement: manufacturer information