Tues spin session

Long warm up. One leg drill. 2 x 25 min mixed set. Kind of fun actually. I think I've got it right.
1 min build
2 min at over 100 rpm (We are assured this is the only downhill in coachland.)
3 min hill climb
4 min 15 @90 15@120
5 min time trial
4 min 15 @90 15@120
3 min hill climb
2 min at over 100 rpm
1 min big finish.

5 minute easy, then do it all over again.

For me, 1.75 hr.

After more than 2.5 hours on the bike on the weekend, my butt didn't hurt at all, but tonight about the 1:20 minute or so, I stopped being comfortable on the bike.