Originally Posted by
MikeD1
If anyone knows of any 7 spd freewheels out there with a 25 or 26 low, I'd love to hear it!
Sunrace makes a 13-25 7speed that you can
pick up cheap (I've got their 13-28 7 speed on a bike)
To be honest, I think you'd need to go lower (bigger) than 25t to make a big change (52.5" to 44" development on lowest gear). If you can swap in a 39t small chainring at the same time, that should be a help (52.5" to 41" development).