Well, if you're doing 5 hours/week of riding (5x1-hr/day), try to reduce it to just 3 days a week. Do 2x1-hour rides of sprints and intervals. Then do a 1x3-hour ride for real endurance on the weekend. Same 5-hours/week, but the 3-day plan will do a lot more for weight-loss and avoiding plateaus than the same 1-hour workout every day.