I spoke to a dealer today to book my car in for the annual service and we got to chatting about the Centa unit.
Apparently it needs a completely different fly wheel, which is lighter and therefore improves throttle response and also has a centre actuated clutch release bearing and not the fork type used on the old style compensators.
This is why it seems to take a long time to fit and costs so much.
Grease part number is: 4003/2017
