"Only 2 sizes as they are the two we think most likely to sell; were starting small so want to keep stock investment to a min! I'm currently riding one of those frames as my main bike and it seems to be behaving well! (although of course it should as it's one of my designs!:-)
Sizes refer to seat tube c-t, in the table you will also see seat tube c-c and there is also link to drawing of each."
Thanks Hovis.
In Justin's own words:
"Only 2 sizes as they are the two we think most likely to sell; were starting small so want to keep stock investment to a min! I'm currently riding one of those frames as my main bike and it seems to be behaving well! (although of course it should as it's one of my designs!:-)
Sizes refer to seat tube c-t, in the table you will also see seat tube c-c and there is also link to drawing of each."