/7-Take a look at the Wolfman site. I've used a Mag Bag for years on my R60/5 and now that I've got a R75/5 just about on the road, I'm going to get the XLMag for it.
I LOVE the simplicity of the magnets. No muss, no fuss, just pick the bag up and go. And the magnets hold it to the tank just fine, even fully loaded at top speed.
Nice to have a METAL bike again!