DT Swiss Ratchet LN conversion kit for 3-Pawl hubs - 18 ToothDT Swiss Ratchet LN conversion kit for 3 Pawl hubs 18 Tooth The Ratchet LN upgrade kit enables the conversion of DT Swiss 3 pawl hubs to the renowned DT Ratchet freehub system. Features: Pawl freehub systems create relatively small engagement surfaces, which result in higher stress on the contact area. The Ratchet System is extremely reliable due to the simultaneous engagement of the ratchet faces, distributing the force evenly over a large area In