Hi there, I just wonder of these two kind of frame,
the hybrid bike from Polygon, Heist 3.0, and the bike from Thrill, Ravage 4.0

Polygon available frame is written 43,50,and 53, and
Thrill available frame is only 14.5",16" and 17"

Thrill frames shape always shapes like a "curved bow", but Polygon shape is like a "Trapezium"

picture below:



I see no products from Thrill has the same shape (higher top-tube/nearly horizontal) as heist 3.0.
I see some bike calculator and I found myself need an "L" size frame about 19" frame or maybe frame 50.

What actually the big difference if I choose "cuved bow" shape instead of "Trapezoid" shape of the Heist3.0 hybrid bike?