I'm well aware of what I need to do to gain weight, however I'm about to spend about 1500-3000 on my first nice bike so I'll be riding more. Biking seems fairly easy but its something I'm not experienced in so I figured I'd ask. I suppose I should have led with that lol. I figured the newbie tag would convey it.

Yes, body builder. Not very tall though so no competing, just a hobby. I was mainly asking to get experienced viewpoints, as you guys know more. Things like, hey ride with your saddle at a 15% angle its better for your quads. Or, don't ride more than x because you'd need to eat x etc. Macros are basically 50% pro, 30% fat, 20% carb and I'm working on a 5xwk HST routine now. I'm recovering from surgery and liquid diet for weeks so I probably get about 27-3000 cals per day. I don't count because I don't compete and I've been training a long time so I know what I need. I've been gaining about a pound every two to three days so I'm eating barely over maintenance. My best ever was 1lb per day on lots of gear, but it wasnt clean weight.

Also, macros are weird but I'm a hard gainer and respond best to protein overload.

Also, I was healthy at 129, ran a 50 second 400, but after multiple marriages and divorces, got heavy and day, decided to start working out, made it up to 230, got married and lost weight, got divorced and stayed at a fit 200. Now I'm trying to knock it up to 259 and maybe 15% bf (abs very lightly showing) and didn't want to start biking thinking the caloric cost would be nil, and realizing I'm doing it wrong.

My masters is in non proliferation and terrorism studies, I'm one if the rare bodybuilder types who isn't a sports fitness or nutritionist major lol.