Unless you're a professional athlete with obligations, or an amateur racer who feels he needs to train, whatever miles you enjoy riding is the right amount.
Any miles that feel like a chore are that many miles too many.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.