A 55kg Muay Thai guy will not be beating a HW boxer. No way, no how. I understand low kicks and body kicks, but that's not going to matter with that kind of weight difference. I don't care what your art is because real fights don't look like Chuck Norris movies.. when someone who has that much weight on you starts connecting punches, you fall. Simple as that. Weight classes exist for that very reason. Standing up with someone similarly skilled and a giant weight advantage just doesn't work. Boxers have superb footwork, head movement and combinations. Muay Thai does have a larger arsenal with kicks, knees and elbows but he's going to get his head removed the second he drops a low kick. When you factor in a weight advantage like that, you know the reach is gonna be ridiculous.
Either boxing or muay thai is fine for feeling comfortable in a street fight.
About any martial art will be fine as long as you're training what you learn at a very hard pace. Doing punch-the-air kata bullshit or partners cooperating with your drills is just ignorant. I see so many McDojo traditional martial arts kids falling victim to those scams too often. Talk about a false sense of confidence.. if you're not training what you're learning, very very hard, then it's going to be practically useless when somebody's coming at you 100%.
