Originally Posted by cycotron

so heres the lowdown.
I am about 170lbs, he is about 220lbs, he has been training to lose weight and i have been training to gain in the past few months (with diet and resistance training) We started biking about a month ago, our usual rides are up to about 30 miles at 16.5mph average.
Yesterday, we went on a 70 mile ride, the route was good, not too hilly, not too flat. it was 80 deg. fahrenheit out, and sunny. During the ride we both consumed about 6 water-bottles, and I had 8 powerbars, he had 2 powerbars. towards the last quarter of the ride my partner got sick and his performance dropped like a rock. we averaged like 13mph back the rest of the way, he was ready to keel over. He said he felt like he had to vomit but couldnt. When we finally got off our bikes he was shaking. He is still feeling somewhat sick this morning as well. I felt fine, until the 1:30am last night, i woke up and felt like i had to vomit, but coundlt, felt the same way when I woke up this morning at 6:30am went back to sleep for a few hours and im alright now.

What did we do wrong? not enough electrolytes? water? Overtraining?
I assume he didnt eat nearly enough, I believe it takes 1000 calories per hour of hard riding, a powerbar is like 220 calories.

Were both doing the MS150 bike ride this next weekend and are eager to find out what better ways we can prepare ourselves.