Individual Dropouts $35.00 Regular Price$24.99Sale PriceSold individually too. Drive side dropouts. Choosing the Geared option will have the Derailleur hanger on the drop out. Single speed Dropouts do not have the Derailleur hanger.Choose DropoutSelectAdd to CartDetailsAvailable in Drive Side : 142x12 Single Speed or Geared : 9mm Standard, single speed or gearedNo you dont need the single speed specific dropout to run single speed. it just looks cooler,, that's all.