Saddle lock for Ergon CF Allroad Pro Carbon seatpost. Maximum comfort for all - We want our CF Allroad Pro Carbon seatpost with leaf spring to perform excellently on every road, allroad and gravel bike. That's why we offer the cyclist who prefers a saddle with oval carbon 7×9 bars a Flip Head Kit compatible with oval clamps. The Flip Head Kit fits both the straight version of the Ergon CF Allroad Pro Carbon and the Setback model.