DT Swiss Ratchet LN Freehub Body Upgrade Kit - Shimano Micro Spline Standard Aluminum Sealed Bearing 36T. The Ratchet LN freehub body upgrade kit makes it possible to convert DT Swiss 3-Pawl hubs to the beloved Ratchet System. With just a few simple steps it is possible to incorporate the benefits of Ratchet Systems such as the outstanding reliability and adaptability of the engagement angle.

Ratchet LN freehub bodies have a freehub system seal designed into it allowing the conversion of 3-Pawl driven hubs to the Ratchet LN. Its an ideal upgrade for hubs such as the 360 and 370 series.