Originally Posted by
PedallingATX
Steamroller is the only bike you listed that has similar geometry to the Sputnik. IRO is more track, as is the Madison and Masi. Then again, I don't have all of the angles memorized, so maybe I'm wrong, but I was under the impression that Steamroller and Sputnik are two of the more chillaxed geo. FG frames out right now.
All of those have slack geo compared to true track geometry.