Steel #25 Roller Drive Chain Pitch 1/4" 6.35mm 04C Transmission Chain 0.5-5Metre RM 5.41 to RM 425.13
#25 Roller Chain Sprockets 9-80T Pitch 6.35mm 04C Chain Drive Sprocket 45# Steel RM 9.24 to RM 296.93
#40 08B Chain Drive Sprocket 9T - 60T Pitch 1/2" 12.7mm Sprocket Wheel A3 steel RM 20.95 to RM 645.82