Nekuti aya Type B sprockets anogadzirwa muhuwandu, iwo ane hupfumi hwekutenga 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.