GEWAGE Suspension Seatpost for Bicycles - 27.2/30.9/31.6 X 400mm Shock Absorbing Bike Seatposts - Lightweight Aluminum Alloy Seat Post for MTB Road Bike BMX eBike - Walmart.com
Turbine Seatpost – Race Face
Bontrager RSL 27.2 Seatpost - Trek Bikes
Amazon.com : 27.2 Seatpost 400mm LITEONE MTB Seat Post with 28.6mm 30.9mm 31.6mm Seatpost Shim Suitable for Mountain Bike Road Bicycle MTN BMX ( Include 3 Tube Adapters 15mm Setback ) : Sports & Outdoors
Titanium Seatpost: 27.2mm (10mm setback) — TI CYCLES FABRICATION
Hylix Carbon Seatpost-5mm Zero 27.2* 370MM*175G Fit Carbon Rail | eBay