Titanium Seat Post for Bicycle 1. CNC head 2. Weight:180g 3. Size: 27.2/31.6mm 4. Feature: with marks on the ... seatpost CNC Head Titanium SeatPost for Bicycle with Marks Material:3Al/2.5V titaniumDiameter:27.2/31.6mmLength: ... , 400mm and customWeight: About 180gFeature: CNC Head and with marksWe also supply other titanium bicycle parts, such as frame, headset, fork, handlebar ...