Hi RustyOlive,
I love the look of your bike. Doesn't look like you'll get much relief from your seat padding, or is that not required when your hanging off the side?
I'm keen to replace the stock steel rims on my '72 CB500K with some Aluminum Buchanan Sun Rims, but want to know how much wider I can go on the rear, before running into issues with chain clearance.
What are the dimensions of your rear rim? Also, What make and size rear tyre have you got on it?
My old girl is very much a work in progress, but she's come along way from the stock bitser I bought from my mate a year ago. Definitely a labour of love. I'm yet to fit the gold USD forks, triple clamps and twin discs I've recently acquired. If your beast is anything to go by, it will look killer & be a significant suspension and braking upgrade. (once I get all to fit).
Cheers Drew