Last night was hill intervals. Just outside my subdivision is a 1.1 mile hill with an elevation gain of 160'. Not a big hill by most standards but in the right gear it is as steep as necessary. The workout was two sets of 3 reps with a recovery between reps of the ride back down the hill, with 12 minutes between sets. The instructions were to ride thru Z4 then maintain a high- Z5a to mid- Z5b HR. I was hitting the target HR well before 1/2 the hill was done and continued to ride in the Z5's the rest of the way. Two hours in the little ring tonight will be nice.
