r.borders: Don't worry about the 240. I'm only 5'4" and I had no issues with the 240 over the 210 and I've had both Metzler and Avon on my scoot (get the Avon, it's much better and lasts much longer).
I did a lot to make Ruby the most comfortable for me (lowering kit, custom seat, aftermarket risers, bar roll-back). I pity the big guy who wants to throw a leg over her but they say you make it your own, right? Ruby is 100% mine and I couldn't be happier with the Raider.