yes, it looks like a freak occurrence so far as couldn't find any other cases, hopefully someone will know more.
You can see a video at this link https://www.facebook.com/groups/DucatiCMG/permalink/2491943007731985?sfns=mo
How is the wheel flange mounted to the axle..fusion, friction welded? Wonder if this had an effect on the structure of the axle ?
Same part number for V4 and earlier 1299 series rear spindles. Single piece with the wheel locating/drive pins added later. This might get interesting from a recall perspective.
They have always looked like a cast and machined flange, welded to a machined tube to me. Unless the whole assy is cast then machined. Maybe a casting defect? It would not be cost effective to machined the whole lot from one billet of steel.
At least Ducati know how to repair this sort of damage...remember the shock pivot bolt failures? I think there may have been some lawsuits with those..fatality iirc
Usually, as in crank journals, a fillet radii is rolled, to remove stress in the material at the corner. A sharp corner is prone to shearing.
Wow, that is frightening. How on earth does a catastrophic failure like that happen? I think we’ll all be wanting some answers to this one.
I doubt it would have any affect going on where it has sheared, it has snapped on the back side of the wheel mounting had it been on the face side you might be on the right track. Just my opinion. Steve
As above. I would expect the thread to strip first if it was massively overtorqued. Or, it would fail on the wheel side of the flange, to the rhs of the bike.
Probably due to litigation. I expect this one to disappear Might've been at the op request. Iirc his dad died because of the crash.
