voldemort

Haven't ridden for about three weeks for various reasons. Last night did a slow, casual ride of about 15 miles. Felt great, ready to go longer, but it got dark. So today I was ready to try to top my previos best of 60 miles, (which was a pretty easy ride, but with a slow partner). Today I was cruising, and when I looked at my HRM, I noticed I was well above the "fat-burning" level but riding quite comfortably at that rate. At about 40 miles my legs started the ol' thigh burn. Is this because I didn't slow down enough to allow my muscles to recover, and that I depleted all the glycogen? Other than the leg muscles, I was still raring to ride, no other fatigue. Is this a bonk? Or is a bonk when you're wiped out, no energy, feel dead, etc. If I could have just swapped out my legs for a new pair, the rest of me was still ready to go. I was eating and drinking plenty, it wasn't a lack of energy. I made it 62 miles, but only because the turnaround point was at 31, and that was before I had any problems. Any advice, suggestions? How do I avoid this next time out?

Hipcycler

Not a bonk.
That's when everything goes and all you want to do is lie down and sleep.

I'd say just some tired legs without a lot of miles in them after that long break you took.

Not to worry...