Congratulations man. That’s awesome and I always get a kick out of hearing stuff like this. I started at 6’ 2”- 260 lbs. and now holding a steady 190 to 200 lbs. (depending on how long since my last dump).Working out and cycling stresses the muscles. Resting allows your muscles to heal the little micro tears from stressing them which is what actually builds the muscles.
I’m no professional trainer by any means, but everything that I’ve seen and practiced has stated that 24 to 48 hours is best for resting muscles. Really really sore would be more of the 48 hour time frame. This doesn’t mean that sitting around and doing nothing is best. Five to ten really slow easy miles or even a good mile or three walk will keep the muscles lubricated and getting them the added blood and oxygen to heal a little better. Looking into a good low fat/high protein diet will always help with weight and muscle maintenance too.
Sounds like you’ve really found something that you enjoy that is good for you.
Keep with it and update on the progress.