This is a universal thru-axle that is used for mounting the Ortlieb Quick-Rack line. It uses an adjustable length range of 165/168mm, all the way up to 180mm. So the Thru-Axle M6-Connector can be used for all sorts of bikes. On both ends, you&';ll find M6 threaded mounts which allow for the use of panniers o trailers. The Thru Axle is made of high-quality aluminum in Germany and comes in three thread pitches; 1, 1.5, and 1.75mm.