BikePower Whatever goals and motivations that get you out and moving are good, no matter how unconventional.
I would issue one warning from personal experience. I used to push the limits of my strength on my bike, until I learned at 49 years old, that I was strong enough to overpower my body's frame...i mean my actual corporeal body. While straining and sprinting away from a stoplight, I slipped a disc in my neck that kept me off the bike for a year.
Now I'm more interested in average speed, stamina and cardio.
Also since then I have lowered the lowest gears on all my bikes as my knees began protesting after years of mashing up Colorado hills.
But again, keep doing what gets you excited...your body will let you know when you need to try something different.
go, Go, GO!