Within all the spares were a number of Suter clutches, about 4 in total. I fitted one of these before the last Donny day. Overall its 1/3rd lighter than the HRC item and has 2 extra plates.
It's incredibly light at the lever using clutch springs that are under tension rather than compression like the standard clutch. The action is very positive and there is no grab at all.
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If I have to take the carbs off once more...