50BS18 Sprockets

Choose bore size: * 1/2" i.d. 5/8" i.d. 3/4" i.d. 7/8" i.d. 1" i.d. 1-1/8" i.d. 1-3/16" i.d. 1-1/4" i.d. 1-7/16" i.d. 1-1/2" i.d. 1-3/4" i.d. 1-7/8" i.d. 1-15/16" i.d. 2" i.d.