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Holy Bonk Batman!
Last Post 06/03/2013 10:55 AM by Kameron Kameron. 11 Replies.
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06/01/2013 06:54 PM
On Saturdays that I don't have a race I try to do a hard three hour "race effort" training ride. Today was going well, I was hammering and feeling great. As I topped a hard climb and drilled it down the other side I got a head rush/light headed minute and actually had to slow down a bit to collect myself. I felt funky for the rest of the descent and then on the next climb I could hardly turn the pedals. I backed way off, ate, drank, and rode mellow for 15 minutes and then tried to get on it again. I felt like sh*t, couldn't get my HR up and then started to get that riding in a tunnel feeling so I flipped it for home. By the time I got home all I could do was lay on the floor. I must have looked smashed too because my wife asked "are you OK?". I haven't bonked this hard on a training ride in a long time.


06/01/2013 10:18 PM
sometimes you're the windshield, sometimes you're the bug

Did you have enough food on ya to make things a bit better?


06/01/2013 11:10 PM
I backed way off, ate, drank, and rode mellow for 15 minutes and then tried to get on it again.

If it happens again, you may want to wait a little longer than 15 minutes before getting on it. Even if you're using gels, your body needs time to digest and raise the blood sugar; especially if you've been riding hard. Energy bars take even longer.


06/02/2013 01:48 AM
I really don't think that it was a fuel issue because I had a good lunch and was only 1.5 hours into my ride. When the lights go out like that, it doesn't really matter what you eat, the ride is over. The 15 minute roll was me hoping (in a bonk fog) that my legs would magically come back around not me hoping that the food would start working that quickly. By the time I got home it had been 50 minutes since I ate the bar and it still hadn't helped. Hopefully I'm not getting sick!

Inferno, that's funny because I told my wife that I was the bag today (sometimes you're the boxer and sometimes you're the bag).


06/02/2013 07:30 AM
Tried and true: coca cola. Fast acting.
Gonzo Cyclist


06/02/2013 09:51 AM
wow, glad you actually made it home, I have not bonked in quite some time, but the last time I did, I had to call for a rescue, took me two to three days to feel right again.


06/02/2013 11:02 AM
lsd, I didn't have any cc with me. ;} I did have a cup of coffee after I crawled off of the floor though.
I have no memory of riding one trail that I know I had to go down to get home!
This morning I am achy so I think I have a bug.


06/02/2013 12:22 PM
A bike ride starts with eating and ends with a beer and more eating. It does not start with a gargantuan swm and end with running a marathon. That's just crazy talk.


06/02/2013 01:30 PM
A few years ago I had a couple of rides where I bonked, badly. No rhyme or reason for it. Eventually, I started to experience shortness of breath and dizzyness early into my rides. Made a doctor appointment. He was alarmed, pulled me off my bike. Had a bunch of tests, turned out I had a minor heart condition. I take meds now, which screw up my cycling, but I can still ride. So, bottom line is, if this continues you should see a doc. No mess around..they can tell a lot by blood work..


06/02/2013 07:50 PM
Well, you can lower your blood sugar pretty quick if you are going really hard, even if you are eating but can't digest well at a particular time. It does not take much of a blood sugar drop to make your brain go fuzzy - it depends totally on glucose. And if you had, for some reason depleted liver glycogen, you get to the state you seem to have been in - can't recover for nuthin.
Patched Tube


06/02/2013 08:40 PM
Every time I bonked hard I was worth $4ite for the rest of the day. Food and drink got my brain mostly unfuzzed and my body functioning but I was firing on seven cylinders at best. Once I got past the beginer mistake of not eating right the day of and during a ride the last time it happened I figured it probably had to do with a lot of work and poor eating the day before. A

Another lesson learned the hard way...
-- that which cannot be proven as true must be regarded as false or not affirmed as true


06/03/2013 10:55 AM
Ha….I felt your pain on Saturday. Was out for a solo ride and had started with a tail wind of almost 20 mph for about 35 miles averaging over 25mph. On the way back, about ten miles before I got home the lights went out and I still had a 1/2 mile of a an 11% climb ahead of me plus the head wind. I had a good dinner and breakfast plus two bars, but like you said it’s not the fuel it’s how the body feels and sometimes you have to listen to it.
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