[T77911S]

i did many rides with my legs on the edge of cramps, usually climbs. i did the hotter than hell 100 in texas one year. the first 60 miles we averaged around 27 MPH, i had not ridden much before this because of a back injury. the last 40 miles were pure pain from cramps. i drank plenty, i just over did it. like you, my leg locked after getting off the bike and continued to have uncontrolled cramps the rest of the day. sometimes the muscles can only do so much even with enough water.