70 seems to be about the limit on the first century. Riding with a fast group didn't help either.
I do The odd century and my only training for that will be a max of 65 miles. Why do a 100 in training for a 100? Get miles in and train for the hills but those of us that do century rides just do them.
Secondary training-----FOOD--- For a week before your next bonking attempt- start carbo loading. As much pasta- rice- bread- potatoes as you can manage- do not forget protein and fat either. This will build up the carbo-hydrate store in the body and that is what you need to give you energy on the ride. You also want to munch on carb foods on the ride- cereal bars- cakes- sandwiches- dried fruit or anything you may want to eat but start eating an hour before the ride with a good breakfast and then keep eating.
-----DRINK---- at least one bottle in the 30 minutes before the start and at least i bottle every hour- more if you can manage it. If you take gatorade or an energy drink- drink more water with it.
----Pace---- Very important and as it will be your first century- Come off the pace a bit.
Lastly-- Don't worry about the ride- Get out and do it and enjoy it.
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How long was I in the army? Five foot seven.
Spike Milligan