I just didn’t, or went light.
From Wired Magazine…
I also did not.
While in college, I trained for the local DALMAC tour in hot conditions. Got a Profile seat mounted double water bottle mount, and survived (Bananas). The week of the tour was a mix of one hot dry day, one cloudy hot day, and the rest was fugly foggy rainy moistness… (I did pass someone with a completely destroyed bottom bracket. How does it get that bad, and why didn’t they check it before starting the tour? 
)
I guess it depends on what is a heat wave. It’s over 100 in northern California today but that might not be as big deal for Texas. It got 96 yesterday and I did my workout from 10 to 1. Usually, assuming I am hydrated, I am ok if I have decent speed, 17 mph+. It’s when I stop that I notice how hot it is.
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Yep! During the training I was doing, I didn’t realize that I was riding a road east that had full west exposure, and my calves got torched! Other west facing chicken skin got it too, but the calves were the worst. Took a couple days to really feel it too. OUCH! I handled the heat, but the SUN was the big winner.
@robcow Side note: I get irritated by people who don’t check their Di2 or SRAM batteries before doing events.
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And Edge’s and lights and power meters etc… I get ya. Keeping the lights topped off is my weak point though. shrug
Get up early and stay hydrated with electrolytes, don’t expect to do long threshold workouts or Vo2max that well. At least for me, doing intervals longer than 20 minutes are a lot harder in the heat. Unless I get up at 5 am and riding by 6 am.
I’ve been using Skratch hydration in every bottle the past year and it seems to have helped how I feel during and after hot workout days.
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Skratch seems to have more sodium than other mixes I’ve used. I gave them up for a while because of it, and swap their mixes in when necessary. This year has been hard to do much riding outdoors, or in too. Their flavors seem better than the big tablet types, IMO. YMMV
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Yes they have a little more sodium and all natural flavorings without any artificial coloring.
I live in Florida so it’s hot 8 months out of the year and electrolytes are needed down here regularly imo.
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Only 96 here today, but stuck indoors anyway. Coach told me to refill bottles with ice half way through threshold intervals last weekend and it was a truly fabulous idea. (Riding up to 7k feet on those intervals also helped with heat… though not so much with oxygen.)
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Phoenician here. 9am is the witching hour. I think the UV radiation is under talked about. Same temperature and humidity feel violently different under hazy vs cloudy skies.
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Yes it is one of those depends answers.
100 is hot even for Texas. Couple that with humidity and it can be a killer. It’s one of those times when you want wind in your face.
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Oh yeah, humidity kills me at even warm temperatures. So uncomfortable
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I had a 4 hour ride today and even though it was on a mostly shaded trail I would have been better off cutting it at least an hour short.
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Houston here. We have the heat and humidity brutality combo, but it’s super flat, so no climbing, but also no coasting.
My stomach is sensitive to all the packaged mixes, I don’t know what it is, I think maybe the tart/tangy-ness, especially when it gets hot, so I make my own mix with malto/fructose and have many different flavor tabs with different sodium content to add in depending on the conditions. Today I used PH1000, plus Cliff blocks with extra sodium. I use the large Polar insulated water bottles and fill one half way and the other 2/3 with plain water and freeze overnight, then pour my sugar mix on top in the morning. The first one is fully melted and starting to get warm in about 75 minutes and the second at about 100-120. I’ll stop at a gas station for the A/C break if needed, so that’s a good time to buy a water and a snack and refill the first bottle.
I also tend to bring something solid along with me in case my stomach needs some help with the heat. Today I had a large Rice Krispie treat that I split into 3 servings. I also occasionally buy a coke and shake it flat in my bottle for a pick me up.
I rarely do over 3 hours in the heat, and I almost always leave by 6am. Today it was very hot (feels like of 86F at 6am) and I was feeling tired, so I just did an easy Z1/2 ride. I try to get all my intensity in during the week on the trainer so that I can give myself permission to just dump the workout if needed and take it easy outside on the weekends.
Hopefully there’s something in there that will help others.
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That’s very similar to my ride this morning in GA although I started at 8:30am. My ride was just over 3:45 but I would have been better off doing 3 or less.
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I do not know the “feels like temp” this morning, but it is really humid. I took it easy and downed 4 bottles out on the road. Now its 94F and feels like is 109F
Edit: I almost forgot. On my way down hill near the end of my ride I saw 2 zebras.
I know they were real….
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It’s dry heat here, but it only takes a couple weeks to adapt. I’ll do shorter intervals between 90-95F / 32-35C. Above that it’s easy endurance.
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But overly cold water/liquid can cause throat/esophagus cramping. And ‘brain freeze’ 
)
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