Does anyone know what the lowered height would be if I were to go from a stock electra glide suspension to a Progressive 412 in any of the heights offered 11.5 12 12.5 or 13??

 

I would not go any shorter then 12.5" or you will kill your ride. Thats what I run and my bike is low. I run a Road glide seat that sits me lower then stock also.

 

Go with the 940s you can adjust from 13" down to 12" depending on your riding conditions. I run then and they are great.