if you want to build a dingle speed, I have found this link useful as it calculates chain stay length together with gear inches so you can find the combinations that give you the gears you want with similar chain stay length. http://eehouse.org/fixin/formfmu.php
if you want to build a dingle speed, I have found this link useful as it calculates chain stay length together with gear inches so you can find the combinations that give you the gears you want with similar chain stay length.
http://eehouse.org/fixin/formfmu.php