Add mileage every 3 weeks and then drop mileage down a week to allow for recovery then ratchet back up. This is what marathon training schedules to and it's good if you're new to longer distances. If you're comfortable doing 60 or 70, you'll probably be just fine over 100 and completing the route should be a snap! Intervals will make sure you get done before all the good beers are gone at the finish...
Reading thru some old reports/tips tonight to get some ideas of ride/races I want to do this next year and some training tips. Being an ex marathon/runner/racer I understand the concept of recovery weeks every 3rd or 4th week. I also understand interval training. What I didn't see listed here was how long/mileage anybody is doing the interval training and at what speed. 1/4 mile or 1/2 mile sprints at race pace or faster speed is that close? Thanks Zman
If it was easy it wouldn't be a memory. You just hope you don't have all your memories in the same ride. been there dun that Zman