Bike Mielec

i have no idea but shouldn't you just choose your fitting effective tt lengths and put that on the pursuit geo?
so if you run a road bike with an effective tt of 55cm you'll need the same effective lengths for the pursuit geo?

my 55 effective top tube low has 13cm headtube with 31mm stack height king headset. It is not hard to compare that to a roadbike. 75 degree seat angle makes the reach a little longer than on a roadbike, but I am not riding it with 12cm stem and hoods either.

Why would anyone 181cm with 86 inseam get a size 53, I mean I assume you dont ride 53 roadbikes either? I am 181 with 85.