Now this would sound well Eastern to you, but you can cut a bit of the saddle mount tube(on the bicycle frame), if that inch or so will make a difference.
Worked well with bikes which saw mountain riding, so no adverse effects as you leave the weld out of it.
A bigger frame is much nicer for covering distance, as it is a stiffer platform to pedal, transferring more of your effort to the wheels. so any differences may be due to that also.
Last edited by DrDanger; 06/10/20 12:04 PM.