DT Swiss spare part for 3-pawl / Pawel hubs / spacer ring for freehub body
This spacer sleeve fits between the freewheel and the bottom bracket; dimensions: 15 / 16.9 x 10.1 mm
Herstellerinformation: DT Swiss, Längfeldweg 101, 2504 Biel, Bern, Switzerland, https://www.dtswiss.com/