Compatible with: S2/S3 (2014 - 2018), S3 Disc (2016 - 2018), S5 (2011 - 2018). The SP17 Large Aero Seatpost features a dynamic shape at the top, which was designed to work with a standard style two bolt seatpost rail clamp that works with 7mm round and larger oval carbon rails. The lightweight carbon construction is strong and the top design offers some compliance through its leaf spring-like structure.

Available in Zero of 25mm offsets, and sold here only in the 370mm length, the SP17 must be run with a minimum of 65mm of insertion into the seattube. As with most carbon posts it can be cut to necessary length for smaller S-series frames. We recommend the Park Tool SG 7.2 Saw Cutting Guide and a hacksaw with a carbon-specific cutting blade such as the Park CSB-1 for clean, safe carbon cutting.