Wheels Manufacturing Hanger/Dropout 104

Wheels Manufacturing Derailleur Hanger/Dropout 104. Upgrade or replacement rear derailleur dropouts, stiffer and more rigid to improve shifting performance. CNC machined from solid 6061 aluminium to exact tolerances make it stiffer than any original equipment hanger which improves shifting performance. Still breaks before your frame does to perform its main function. Direct replacement for original equipment with guaranteed fit.