Originally Posted by
gamby
I hate to be contrarian, but pre-activity stretching has be frowned upon for quite some time now. Post-activity stretching is a different story--do that.
Cramping at 4 miles is puzzling. That's WAY too soon to cramp. Maybe do some easy spinning for the first 4 or 5 miles until you're fully warmed up.
not contrarian.. just correct. i will do some stretches part way through a ride and at any rest/snack stops.
4mi in is strange. i'd agree that you might have been going too hard out of the gate. back off a bit to start and maybe eat a banana beforehand