Unless the guy is completely stupid and loves spending his money and time on buying and fitting new chains; i imagine it will be a URT suspension design.
I'm pretty sure it's not a URT (you can see where the downtube joins straight onto the BB shell), and the guy is completely stupid and has made himself a rigid bike which uses chain tension as a structural element.
I'm pretty sure it's not a URT (you can see where the downtube joins straight onto the BB shell), and the guy is completely stupid and has made himself a rigid bike which uses chain tension as a structural element.