CT110 Postie Bike Rear Sprocket

Stabdard 45T rear sprocket 

Agriculture CT110 1979-1995 use a "4 peg" 45T type rear sprocket

Postie Bike CT110 1979-1984 use the same "4 peg" 45T type rear sprocket

Postie Bike CT110 1986-1998 use a "P" type 45T rear sprocket

Postie Bike CT110 1990-2009 use a "Q" type 45T rear sprocket