Right so, what is the point?
I currently run 2x10 with no issues, my chain doesn't fall off and I can happily use both rings. When I get really tired I can use the little ring on climbs when I want to go fast I can use the big ring.
I have run 3 by 9/8/7/6 in the past quite happily too also without losing the chain. So why is everyone going to single ring set ups?
Sorry just can't see how a single ring is going to be better for riding trails that go both up and down.
What am I missing aside for a chainguide thingy and a single ring?