So I log a few thousand road miles and a few hundred trail miles every year. I'm a healthy guy, generally one of the most fit and healthiest among my friends and family. My legs are naturally very nice looking (it's a family thing, even the slobs in my tribe have this until they get really out of shape). My core... not so great. The core muscles are there but not huge, but there's a decent layer of fat that masks them. I was a little overweight as a youngster and never really last bit of fat in this section when I became an adult (otherwise I would call myself lean). I probably have 5-10 lbs of fat remaining that I could lose if I really tried, but it's at the stage where my body really wants to hang onto it. Still, I would love it if I could shave some of this off and maybe trade it for some better core muscles (abs, chest, back... abs are the worst looking due to the fat that hides them). Since this is a bike forum and probably loaded with fit people I'm wondering if anyone has advice? I hate Googling on this subject because you get all kinds of stupid links to products and sketchy blogs that suggest extreme diet alterations in addition to some weird exercises. It gets a bit overwhelming trying to sort truth from fiction.
Help? Maybe there's a way to work on the core while on the bike? Maybe there are good at home exercises? Does diet play a role?