So... back on topic. Decided to put the rear wheel on, mainly based upon this thread.
Here are some pics, including how close my tire (140/70/17 Pirelli) comes to the swing arm. Plenty of space in my opinion. the 4.25 wheel works out fine. The previous wheel was stock with a 130/90 and I had to air it down to install. With the new tire/Wheel I have to remove the diff to install.
This gives a side view, may have to zoom in... there is about a thumb's width of space between the tire and swing arm. The tire rotates with no rubbing or issues in the front or top fender area.
This is a second close up, may show better.
And here is a third pic....I tried to get in as close as possible. Scale may be hard to discern here.
One thing I was not very happy was this.....
I had to clean this out and re-tap all of the threads. Some were not completely threaded and some still had swarf left inside the hole. Not happy.