swooshdave

You would be surprised at what can turn up in the South. With the distributor gone in that area there is little to no support and even less knowledge about those bikes there.

I have a feeling it's next to that place that the sun don't shine.

Just because a dealer sold something doesn't mean it came from the factory. Unless you have factory literature showing a product I would question it.

My machinist in the Norton club is so old school his lathe can’t cut the metric threads. So far my mount is working fine although the custom one is pretty cool.

All good! Thanks for confirming.

The bottom of the tank should either align with the bottom or the seat or it should flow together. Neither one of these two do that.

Can you confirm the height dimensions? Overall and then of the upper and lower parts?

You can't have a 30mm diameter object and require a 30mm wrench. But you are correct that the first post did say a 30mm wrench. If I could get to my bike I'd measure the existing stem nut but there are a couple Nortons in the way. Damn British.

I don’t disagree which why I’m waiting for validation of the figures from @KINDOY2 who said the flats were 25mm and outside diameter was 30mm.

You, who never misses anything.

I may get some made, stay tuned. Need to verify the dimensions first.

How close did I get?

CV joints seem to be a much more complex and weaker solution, but unfortunately necessary in some applications. Meanwhile if you have an application where a U-joint will suffice it can be made more inexpensively and robustly (assuming engineered correctly). Isn't the issue with the V11 drive shaft the difficulty in keeping the join lubed correctly?

Maybe some bar end mirrors...