So here's an update after about a year of bike ownership.
It isn't an end-all , be-all solution, but dang it's nice when it works out. I had several hunts last year where I was able to ride the roads and wade across creeks after they shut vehicle access down due to flooding. I always had the place to myself, and I always saw game. Sand is not fun. Deep mud is worse. Hills are worst of all. But, it isn't any harder to push a bike through that stuff than it is to walk in. Usually I can dismount, push a little bit, and hop back on.
For scouting, it's the bee's knees. You cover WAY more ground, and I can keep riding after I'm too tired to lift another foot walking. You use different muscles, I guess. I've ridden up on hogs, deer, and turkey. They don't seem to be able to process what the sound of bike tires means.
Slime tires are a must. I blew two tires last weekend riding through an old clear cut with a lot of gnarly thorns. A small seat pouch with 2 tubes and levers, plus a frame mounted mini pump are all the tools I've needed. I do keep a spare chain and chain tool as well though, just in case.
Hunting conditions are HARD on a bike. The tech looked horrified when I brought it in for service. Apparently, mountain bikes aren't made to live on the back of a truck and ride through mud all season. That mud has super fine particles that get all up in everything.
The jx3 was my favorite stand to use with the bike, becasue I could strap everything to it, including my weapon. handlebar mounts are not great. Haven't tried a rear one because they're pricey. Neither solution is great when you're wading a creek that goes over the handlebars...