04-19-2009, 02:55 AM
To fully answer this question you need to look at a gearing chart. The answer depends on the size of your front chainrings, and the complete range of the rear cassette. More generally, the 30 tooth sprocket will be helpful if you live in a more hilly area.
http://www.geocities.com/SiliconValley/P...Gears.html
http://home.i1.net/~dwolfe/gerz/howto1.html
http://www.panix.com/~jbarrm/cycal/cycal.30f.html
Check into half-step gearing.
http://www.geocities.com/SiliconValley/P...Gears.html
http://home.i1.net/~dwolfe/gerz/howto1.html
http://www.panix.com/~jbarrm/cycal/cycal.30f.html
Check into half-step gearing.