Hi, Finch. I started this journey at 297. I'm now at 279. I mentioned to my SO that I used to love biking when I was a teenager and he bought me a mountain bike at WalMart for about $67. I've been riding it and it's holding up just fine. The only change we made to it is a more comfortable seat!! The one that came with it simply wasn't big enough. I didn't want to make a large cash investment until I saw if I'm going to continue riding. I still love it since I got the new seat. When I wear this one out, I'll probably get another one like it because it works just fine.
Good luck and happy riding!
I am learning to be patient and compassionate with myself as I gain the courage to be true to myself. Shakti Gawain