Looking at those folding handlebars, and making more measurements, I have this comment. The handlebars, when telescoped in as far as they'll go against the handlebar bag mounting device as shown, are 13" wide. If I removed the mount, they would be 11" wide. Across the width at the wheel axles, the folded bike is 11-3/4" wide. One pedal does extend beyond the end of the axle, so a folding pedal would narrow the bike a little. The folding handlebar does not have space for the handlebar bag mount, so that would be a drawback. Considering these factors, I think it's not worth replacing the handlebar, and even if the folding pedals were used, the width would still be 11-3/4" which is probably too wide for an over-head carry-on bag compartment. Those usually are 9" maximum, I think.