Trask Performance Fl Cush Drive Chain Conversion Kit 51T With 51T rear sprocket for a smaller than stock drive ratio for’more puch out of the hole’ or for track use to achieve higher than stock RPM. Big power and/or agressive riding styles can break belts. A good chain can handle more torque, as Trask Performance knows from experience and the reason why this chain conversion kit is developed. The rear sprocket comes with a carrier which is compatible with the OEM 09-up style rubber vibration damper for an effortless install. Note: A chain is not included and must be ordered separately. High quality 530 O-ring chain is recommended. Use a 130 link chain with the 51T sprocket, a 140 link chain is recommended with the 54T rear sprocket. Note: Rear sprockets with a different tooth/ratio are interchangeable with the rear sprocket carrier. Cush Drive part numbers overview: – 51 tooth sprocket conversion kit (MCS 963442) gives standard drive ratio – 54 tooth sprocket conversion kit (MCS 963440) gives smaller ratio (more RPM) for more’punch out of the hole’ and track use – 51 or 54 tooth replacement Cush Drive sprocket MCS 963443/963441 – 25 tooth replacement transmission sprocket MCS 964971 09-24 FLT/Touring. We will accept your request at our earliest opportunity. This includes Republic Of Ireland. Please do not ask us to lower the value of goods this is illegal and we do not want to get involved in this kind of activity.