Originally Posted by
Peterpan1
Much of any "problem" you might have will be with the rear cluster. IF you use the widdest imagineable range back there it will have a huge impact on the gear spacing. I try to find tighter ratios like 13-32, and combine that with tighter ratios up front like 46-42-26. The real output depends on your wheel size but the spacing is independant.
An explanation of half step gearing can be found here:
http://www.crazyguyonabike.com/doc/p...e_id=56277&v=s
With a wide spaced 9 speed ie 11-34 you sort of (but not quite) get back to the old situation of the widely spaced cogs on freewheels, so using a half step setup to "fill in" the large rear shifts is an interesting idea, but its a personal preference whether you are ok with 15% or 7% between shifts.