^this is more likely. There are many factors that affect feeling the bike flex ( different wheels, cranks, tubing, tires, cockpit). So unless you have the exact same frames and components of the same age the rear triangle spread wouldn't be the first place to look. More knowledgeable people are welcome to weigh in :)
^this is more likely. There are many factors that affect feeling the bike flex ( different wheels, cranks, tubing, tires, cockpit). So unless you have the exact same frames and components of the same age the rear triangle spread wouldn't be the first place to look. More knowledgeable people are welcome to weigh in :)