da hangerbenda

Derailleur hanger testing and straightening tool.
 
 A part is inserted into the bore of the axle and serves as a reference and for counter holding.
 The other part is screwed into the derailleur hanger. If necessary, you can counter lock it with a nut from the inside. 
 
 Due to the same diameter and the same length, it is possible to estimate very precisely whether the derailleur hanger is straight or oblique / crooked. With the long lever arm you can align the eye with moderate hand force until both rods are parallel, or you can intentionally set a different alignment.
 
Made from steel for minimal deflection.