I noticed this thread while I was eating a handful of chocolate covered pretzels to chase some jalapeno kettle potato chips and fritos that I had after my bowl of chili for lunch. Probably should have seen this thread earlier. At least I ran six miles already today.
I’m in a similar boat to OP – same age and height, close to same weight (was 192 lbs. a couple weeks ago, now 188-189), low end in my weight cycle is about 172 lbs. which I’ve hit a few times in the past 12 years when I was half-iron fit, but I never have held that after the big race. I’m afraid the days of the great fat-burning 4 hour bike rides and 2 hour training runs are mostly behind me, so on a lower volume of training with reasonably careful eating I’d be happy with hitting low 180’s and holding it there for more than a couple of months.