Dr. Misner suggests the athlete “leave
three hours minimum to digest foods
eaten at breakfast. After breakfast,
drink 10-12 ounces of fluid each hour
up to 30 minutes prior to the start
(24-30 ounces total fluid intake).”

I'm still trying to digest this observation. Presumably he means the calorie expenditure from that breakfast will occur approx. 3 hrs. after it's been eaten.

I consider myself lucky to have at least half hr. rest time after breakfast before jumping onto bike.