Zoom Suspension Seatpost made from sturdy 6061‑T6 aluminum alloy, this seat post includes a coil spring + elastomer damper that absorbs road vibrations and trail shocks—perfect for biking across city streets, rough gravel tours, or mountain trails Features: Zoom Coil Spring Suspension Seatpost Ø27.2/30.9/31.6 x 350 mm (Diameter x Length).Note that the adjustable saddle clamp is included. Bike Suspension Seat post features a progressive coil spring and elastomer to effectively absorb vibrations, enhancing rider riding comfort. The saddle clamp...