I broke 30.5mph on my bike yesterday, in 70-80 degree weather. Not bad, overcast. It was even a bit rainy on the way, just a little here and there... barely started then stopped. I think I saw three drops.

When I stopped at the next light, I started pulling water from my camelbak like crazy. It was cold when it hit my stomach; I started gulping it down like I wasn't going to survive without it. I think I pounded back a whole liter in one go.

Then I felt like I was gonna puke.

I don't get it, when I start to overheat I'll start guzzling water. I'm not even thirsty, I just start pounding back more than actually fits in my stomach. 3L camelbak was empty at the end of the day, and I started rationing water when it got light! 21 miles!

If this keeps up I'm going to need to bolt another water bottle cage on my bike and throw two 24oz bottles on.

Been there done that. I try and hydrate throughout the day and that actually helps a ton. But in those instances where it seems like I can't get enough water, I don't swallow all of it. I'll chug to quench the thirst, but spit it out if I've already downed quite a bit.

Never wait until you are thirsty to drink water, by then you are already dehydrated.

Medical types, correct me if I'm wrong, but I thought it was generally best to introduce fluids to the body with a dissolved ion% similar to that naturally occurring in the body, due to osmosis.

I mean, when they inject you at the hospital, they use saline solution vs. pure water as the "carrier" for that reason.

I think you could make a similar argument that drinking electrolyte-laden water (Gatorade and competitors) sits easier on the stomach than H2O, esp. H2O with a low mineral content.

Drinking too much cold water on a hot day will do that to you. Your body isn't designed to absorb that much cold water at one shot. You need to drink some as you go, the whole way.

Like said above pre riding hydration is the most important part.

I use Nuun in all my water, or Gatorade in the bottles (sugar doesn't go in my CamelBak).

I wasn't thirsty when I started drinking; I was just hot, I guzzled because I was overheating and not dehydrating.

How do I fix the overheating thing when well hydrated?

Seems like you have drank way too much for your stomach to handle it

Slamming water to the point of nausea ("pounding back more than actually fits in my stomach") will deplete your sodium, especially under a good long ride. It sounds like you had a mild case of hyponatremia.

How about pouring the water on you instead of in you?

And this I would like to see done with the Camelbak!

hydration is essential. Drink water before your ride, during your ride and after your ride. It is one of the healthiest things you can do for your body. Enjoy!

ARed

Right after I mention I had a sack full of sodium-laden water...

But then I would get wet o.o

Drink before you're thirsty.

Assuming you're properly hydrated, if you're overheating on a bike, slow down, and if that doesn't work, consider swimming or an indoor activity. Or ride in the early morning, in the shade, drench your head and body with water.

stop wearing a camelback - something like that on my back would make me overheat

I really misread the intentions of this thread from the title. I thought it was the follow up to riding your bike to the pub.

Same here.

Which usually also means it's humid, so sweating is less effective at cooling you off. Easy to get overheated in those conditions.

I'd suggest getting an accurate scale and weighing yourself before and after the ride. Are you coming anywhere close to sweating out that much water in 21 miles, or are you drinking too much during the ride?

I have a constitution somewhat like a camel, in mid-70s weather with high humidity, I might finish one water bottle per ten miles. Three liters in 21 miles would have me puking, too.

When I need to cool off more than sweating alone can do, I pour water on myself, or soak my clothing.

Also make sure you're well ventilated, clothes that breathe well, no backpacks or other undesirable insulation. When it gets really oppressive, try filling your jersey pockets with ice and just letting it melt away -- direct cooling from the ice, plus it keeps your jersey damp and trickles down to cool your legs. That works well for me in humid 90-degree weather.

And, of course, if none of that works, slow down before you give yourself heatstroke.

Mmmmm. . . water

If I start to overheat,I like to put something wet around my neck,bandana or something.Alot of blood goes thru your neck so it helps keep your body temps down.

I had never projectile vomited before until I did this one day.

This may help explain some of bluefoxicy's problems:

https://www.bikeforums.net/showthread...ife-commercial

bluefoxicy - as what stated, pour water on you, not in you. Sip water that goes into you every 15 minutes.

I've used NUUN... I probably got it the same place as you--Performance Bike in Towson (or online). I've switched to Hammer Endurolyte instead, so that I can carry more fresh water that can be rationed between drinking and pouring on me. 2 bottles last my entire commute home from Aberdeen to Essex.

I don't even carry water unless the temps are over 90 and I'm going to be riding for at least 45 minutes. That means pretty much never on my commute.