Replaces: Haibike Part #2501170090 and HW-DHG-012. For 12mm Thru Axle. Note: Haibike changed the style of the Gen2 derailleur hanger used on most sDuro and xDuro thru axle frames from 2014 onwards. Our DH306 is backwards compatible with the older style hanger and will overhang slightly on the dropout.