Today was the first day riding after the 300K. There's a standard loop I did before the 200K that I haven't been able to do since then. (I got my new PCs the day after the 200K). I figured that if I were able to do a 300K with 4000 ft climbing, I should be able to a 100K with 4000 ft climbing.

This particular loop has 6 climbs in it, and most of them are between 6-10% grade, and I expect that some max out at 12-14%.

Anyway, I made it through the whole loop today, which is a very good sign. I was 6 minutes off my usual pace, but I know I took it easy because I didn't want to bonk along the way.

What this tells me is that I need to do is loop 2 or 3 times a week until the 400K on 3/3, and I need to do my 22 mile loop using only alternating leg isolations.

The other thing I noticed is that I used way more Hammer Gel per mile on this ride than I did on the 300K, and I was hungrier during this ride. I guess I need to pack along some Sustained Energy for this ride to more closely mimic the fueling of the longer rides.