Your right, of course.
I've been using the derailler for chain tension with 1 cog for the last few
months. It's a clumsy solution though. I'm constantly hitting the bar end
shifter on something and knowing the chain off the cog. And I must
be missing out on some of the efficiency benefit of
I see you don't need the Melvin with the eccentric, but why would you need
an eccentric hub if you'll leave the derailleur on? You could pop off the
cassette, pop on the spacers and cog and go, all without the cost of
another wheel, tire, tube, etc. If your rims are different widths, changing
