Did a 40 mile Tour de Cure training ride training. Pretty uneventful with a decent but relaxed pace for the first 35 miles or so but the group fragmented with a few miles to go and I jumped to the front with the intention of just getting it over with but I walked into a testosterone fest with 10 or so people. I really thought I was gonna crack several times but I guess adrenaline is a beautiful thing.... we were doing 23-28 for around 4-6 miles (I don't remember as everything was a blur), rotating short pulls around 1/4 long and we eventually thinned it down to 5 riders. I was running around 170-185 bpm during that period - I've never held that high a HR for that long. I probably only had 1-2 more miles of that pace in me but I gotta admit, it was a lot of fun