CSX6069,
My wife is 5'4" and she needed to be a bit closer to the pedals in our (her
) CSX.
I removed the seat and was surprised that it couldn't be mounted forward without some decent modification. The only silver lining is that there were two sets of mounting holes that were about 1/2" apart. I was able to remount with those holes and gained that half inch which was better than nothing. If I recall correctly, it wouldn't be the easiest job to redo the seat altogether.