Training objective: Tempo for the first half. Second half hard effort at 65-70 cadence and 155-160 H/R Training notes: There's just no way to get the heart rate up on these group rides (other than the occasional sprint session). High cadence (100 ) gets to tempo, but is still too fast-paced for a social ride as I end up going 36 km/hr and have to ride the brakes the whole time. Higher heart rate (160) and low cadence (65-70) is only achievable from ~41 km/hr (hardest gear), so only on sprints. After a while I realized I there was no way to achieve the objectives and gave up looking at the Garmin screen - it was just getting too frustrating. Probably best to consider these recover rides from training earlier in the week.