Nekuti aya Type B sprockets anogadzirwa muhuwandu, iwo ane mari yakawanda kutenga pane kugadzirwazve kwemastock-bore sprockets, ane-inobhowa, uye nekuisa kiyi uye setscrews.Yakapedzwa Bore sprockets inowanikwa kune Standard "B" Type uko hubhu inobuda kune rimwe divi.