Light & comfortable, Specialized S-Works Pave SL Seatpost damps vibrations to offer the ultimate riding pleasure while keeping key features like the single bolt adjustable head to find your perfect saddle position. Crafted from FACT carbon fibre, the S-Works Pave SL Seatpost has been designed to blend high durability, stiffness, & compliance to get the power down while taking the edge off any road thanks to Specializeds unique Zertz insert technology. The S-Works Pave SL Seatpost is supplied with hardware for both 7x 7mm & 7x 9mm rails for compatibility with both alloy & carbon railed saddles. Description by Mark, Rutland Cycling Web Team.