... bore sprockets: a) Models: no.25, no.35, no.35-2, no.35-3, no.41, no.40, no.40 ... , no.120-2, no.140, no.140-2, no.160, no.160-2, no.180, no.200, no.200-2, no.240 b) Tooth width ... : B1 0.110" - 1.738" c) Roller diameter: 0.130" - 1.875" d) Pitch: 1/4" - 3"2 ... ) American standard finished bore sprockets: a) no.35, no.40, no.41, no.50, no.60, no.80, no.100 b ...