Pilot Bore sprockets have teeth around the outside diameter of the sprocket body consisting of a straight "pilot bore" hole in the centre with a boss on one side.
Pilot Bore sprockets to suit 1 Inch pitch roller chains.
Pilot Bore sprockets to suit 1/2 Inch pitch roller chains.
Pilot Bore sprockets to suit 1/4 Inch pitch roller chains.
Pilot Bore sprockets to suit 1-1/2 Inch pitch roller chains.
Pilot Bore sprockets to suit 1-1/4 Inch pitch roller chains.
Pilot Bore sprockets to suit 3/4 Inch pitch roller chains.
Pilot Bore sprockets to suit 3/8 Inch pitch roller chains.
Pilot Bore sprockets to suit 5/8 Inch pitch roller chains.