:agree::welcome: to the forum.
To do the 280 you need a 10" wheel, which will fit on a stock swingarm. If you want to go to a 300 you need a 10" rim and steel swingarm, which runs $1000 and up, or a modified stock swingarm.
You can go to the 240, 250 or 260 on a stock 8.5" wheel. Or 280 or 300 on a 10" wheel.
So it depends on how much you want to spend. You won't notice that much handling difference between them, other than the 300 seems to slow the handling down a little.
Here's a link to the steel swingarm. This requires going to the 10" rim and 300 Avon rear tire.
:agree: And perfectly stated. I have 280/160 combo. Love the looks and it handles great.If you're planning on buying custom rims anyway, I would say go 10" right off the bat. If you go stock width, I can almost guarantee you'll want to go 10" eventually. You'll fight the desire for a while, but you will lose. So save yourself the trouble of selling and buying again, and get the 10" with a 280 right away.
Plus, the 280 just looks good on this bike. I had a 250 E3 on the stock rim, and it looked pretty good. But the 280 on a 10" looks a LOT better IMHO.
Installing the 10" / 280 is pretty simple. Some minor tweaking and wiggling that is covered in other posts here, but all in all, not a problem.
I've found the 280 to be decent in terms of handling. Requires a bit more muscle to roll over, but with a 160 on the front it's actually pretty good.