The Specialized Roubaix Seat Post Wedge Binder is an internal clamping wedge designed to secure the Pave seat post in Specialized Roubaix and Roubaix SL8 frames from model years 2020 through 2023. It uses lightweight titanium hardware to minimize weight and requires a specific torque setting to ensure proper preload without over-compression. The wedge installs inside the steerer or seat tube and works with a separately sold rubber boot to protect the assembly from dirt and moisture.

• Compatibility: fits 2020–2023 Specialized Roubaix and Roubaix SL8 frames

• Part number: S199900021

• Hardware: titanium bolt and wedge for reduced weight

• Torque specification: 55 in-lbf (6.2 Nm)

• Installation: internal wedge clamp engages Pave seat post

• Protective boot: rubber sleeve sold separately (part number S199900095)

• Finish: black anodized alloy and titanium hardware

• Purpose: secures seat post with precise preload and prevents slippage