... chainwheel,steel clamp 3.Capacity:20T Top gear:42T Front derailleur1.Index front derailleur,top pull2.Suitable for triple chainwheel,steel clamp3 ... kinds of bicycle pars,such as:frame,front fork,wheel,steel balls,chain,pedal,front brake,rear brake,brake lever,v-brake ... ,sidestand,bell,lock,chain covr. And MTB BICYCLE,folding bike,suspension bike,electric bike,BMX BICYCLE,tricycle and so on. Looking ...