If you are attracted to the simplicity of a 1x10 are not fast and don’t want to be fast and live in a hilly area. I would figure out what 10 speed appeals to me and what front ring I would want and I would build it on a triple crank putting the ring in the center position and add a granny ring 12 tooth less. Where the big ring goes put on a chain guard.
Unless someone sells a double crank where the outer ring is in the center of the cassette and would take say a 28/40 combination.
Forget you have the granny there unless you run out of gas, and then be glad you have 5 or 6 nice low gears to fall back on.
Last edited by bud16415; 02-01-15 at 10:09 AM.