Working on front brakes reminded me that I'd seen this earlier:-
O/S "dynamic damper" (Honda parts list description) seems to have destroyed itself - see pics, N/S one seems ok.
From reading elsewhere, seems this is caused by trapped moisture leading to corrosion on the shaft and that corrosion eventually causing possible snapped driveshaft ?
On mine, although you can't see it clearly in pics, there are signs of corrosion to the shaft inside the doughnut (and it seems like the dia