Originally Posted by
Black wallnut
Ride it until you flat, fix the cause of the flat ride it until cords are showing...... /thread
Flatting unexpectedly up front can be catastrophic.
Personally, at the very least I'd rotate my tires. If the rear isn't in great shape I'd toss it and put a brand new one up front. No amount of pain or damaged bike parts if you crash is worth the $50 or whatever your tires cost. I'd ride that tire as a rear though, not as big a deal if you flat in the rear.