Changing gearing -- front vs rear

[Jeff Frost]

On Fri, 20 Jun 2008, Erik Weber wrote:

> 1) Why would you change the front sprocket rather than the rear? Isn't
> it a heck of a lot more work?

Maybe he couldn't get the equivalent rear for some reason.

>
> 2) I had to put the 15 back on the front, but am about to revisit the
> 14/44 track. What would be the equivalent rear sprocket? 15/46, 15/47?
> Or did he change the front because there is no exact equivalent?

I think 15/47 is the closest.  Which track is it?

-Jeff