Originally Posted by Toadster

my first century is 2 weeks out - we did 76 miles 4 days ago, and we're doing 85 this weekend - everyone is dialed in on this - as long as you have about 150-250 calories per hour (depending on your size) drink before you're thirsty, and eat before you're hungry...

it's an amazing way to burn over 5,000 calories : D

Originally Posted by gregf83

The point is you have more energy available than the 2000 Cals of glycogen stored in your muscles, liver and blood. Riding at 500-600 Cals/hr most fit riders can extract a few hundred cals/hr from fat. You don't need to eat 250-300 Cals/hr to complete a century if you're not racing.