Pinarello Grevil Seatpost Wedge

The Pinarello Grevil Seatpost Wedge is a frame-specific replacement part designed to secure the seatpost within the Grevil's integrated clamp system. If you've lost or damaged the original wedge, this is the correct replacement — not a universal part, but the exact component Pinarello specifies for this frame.

Keeping your seatpost properly clamped matters more on a gravel bike than most riders expect. The Grevil's design relies on this wedge to distribute clamping force evenly, protecting both the post and the frame's carbon at the seat tube junction. Running without it, or substituting an ill-fitting alternative, risks damage that no torque wrench can prevent.