1Choose the size by measuring the OUTER diameter of the frame's seat tube, not the seat post or the inside of the frame.
2Clean the seat post and frame. If the post is carbon, apply carbon assembly paste (not on aluminum posts).
3Fit the clamp with the bevelled side up, the logo readable and the slot opposite the frame's slot (bolt facing backwards).
4Allen model: M5×20 bolt (standard) or M5×25 (thick frames or e-bikes). Tighten with a 4 mm Allen key; without other data, do not exceed 5–6 Nm.
5QR model: keep the lever accessible and clear of the frame. Close it halfway, adjust the tension and close it firmly without forcing it. If the post slips, increase the tension.
6Check that the seat post does not move and check it again after 24 h.