Ritchey wcs trail zero seatpostthe ritchey wcs trail zero seatpost has been completely redesigned to provide even more efficient engagement with the saddle rails and a high amount of adjustability this is due to the fore and aft bolt design which enables quick and easy installation and helps you to easily set the saddle in your ideal position strong and durableease of use isnt the only benefit though as the wcs trail zero is constructed from strong and durable 3d forged 7075 aluminium this