Originally Posted by Debusama

After a few hours in the saddle my hands start to go numb, which was the beginning of the end of me because as the bottoms of the hills I was unable to shift gears on time using the numb pieces of meat attached to the ends of my arms, and was therefore getting left behind on every hill. Once I managed to get into the proper gear, I was sprinting to catch up and get back into the slipstream at an intensity level where I was no longer running primarily on fat stores, so I ended up depleting my glycogen levels and effectively bonking out despite having had plenty of fuel along the way. I also switched from Gatorade to Accelerade this week, so that may have made a difference too.