DT Swiss Ratchet LN Conversion Kit for 3-Pawl Hubs 

36-tooth Microspline, Steel freehub, suitable for e-bikes

With this kit you can convert your DT Swiss 3 pawl hub to the (much better) DT Ratchet LN System with 36 points of engagement.

Not to be confused with the cheaper version that only has 18 points of engagement.

The kit will come with everything you see in the picture PLUS the correct drive side end cap for the Microspline freehub (not normally included).  This will allow you to upgrade to Ratchet LN AND swap from an HG or XD freehub to the Shimano 12 speed Microspline freehub.

Special tools are required for removal and replacement of the 2 (different) drive rings.  The genuine DT Swiss tools are pricey but much cheaper copies can be found on eBay.

• 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 addition, the Ratchet System is modular, so the engagement angle can be changed by replacing the included 36 tooth ratchets with 18 or 54 tooth units (sold separately)
• DT are the original ratchet hub innovators, with over 25 years of development and refinement behind it no other manufacturer has matched DT's system for ease of service, reliability and durability
• Tool-free servicing concept make maintenance quick and simple, even mid-ride in a pinch
• LN system is specific to 370 hubs such as those found on 1900 series DT complete wheels, the freehubs are not compatible with standard Ratchet or Ratchet EXP hubs
• Requires both a HBDT835 Ratchet ring nut tool and an HBDT5266 Pawl ringnut tool to install, DT recommends that this work is carried out by a qualified mechanic