No. of teeth z: 21 | Hub Ø dn (mm): 90 | Head circle Ø dk (mm): 136.2 | Pilot hole Ø d1 (mm): 20 | A (mm): 40 | PCD do (mm): 127.8 Read more.
Simplex sprocket ASA 60, 21 teeth, PCD 127.8 mm
Technical data: