I mounted a pair of Blizzak's on the rear of my 2013 TriGlide but of course, they are not available for motorcycle sizes. Does anyone know of a winter tread tire in the 16" size on the front?

 

If your wanting to ride in the snow then you might want to look at a Dual Sport rear tire to mount on the front wheel of your trike.

There is no front Dual Sport tire that really is going to fit the 16" front wheel on your Triglide. If do decide to try a Dual Sport tire, you might want to consider getting a used 16" HD front wheel and mount the dual sport tire to it and save your current front wheel and tire for the summer