Front derailleur 1.Index front derailleur,top pull 2.Suitable for triple chainwheel,steel clamp 3.Capacity:20T Top gear:42T Front derailleur1 ... .Index front derailleur,top pull2.Suitable for triple chainwheel,steel ... kinds of bicycle pars,such as:frame,front fork,wheel,steel balls,chain,pedal,front brake,rear brake,brake lever,v- ...