A friend bought one of the first ones in the area and was pleased to bits with it, rapidly clocking up the miles as he travelled all over.
He took it for an MoT (inspection) and the tester passed it with a clean bill of health, then took it out for a road test.
Humm.... the chain snapped and wrapped itself around the front sprocket, wrecking the cases. My friend was not happy and got into a very heated discussion with the tester, accusing him of abusing the bike.
He went very quiet when the tester discovered exactly why the chain broke. It was made of at least two older chains that had been repurposed from said friend's other bikes. I mean, why buy new when you can use a perfectly good chain or two that haven't done a lot of miles, right?
The fact that his other bikes only made about half the power seemed to have escaped him.
That parsimony cost him dearly. The tester refused point-blank to foot the bill for a rebuild, quite rightly in my view.
He ended up getting the cases welded and a very neat job was made of them. I get the feeling it probably wasn't the only bike of its type that suffered a similar fate.