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1000ft 2 mile climb in 8min...possible?

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1000ft 2 mile climb in 8min...possible?

Old 09-11-07, 09:05 PM
  #1  
jschu
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1000ft 2 mile climb in 8min...possible?

I know a guy who claims he made it up a brutal 2 mile climb that rises 1000 feet in 8 minutes. That's 15 miles an hour. I'm not sure what the gradient is, but while some parts of the climb aren't so bad (3% or whatever), some parts are incredibly steep. I have a hybrid and I'm only just getting into riding, so to me that sounds like a superhuman feat, but I know we have some rather good cyclists here...is that even possible?
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Old 09-11-07, 10:57 PM
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Anyone?
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Old 09-12-07, 04:52 AM
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Originally Posted by jschu View Post
I know a guy who claims he made it up a brutal 2 mile climb that rises 1000 feet in 8 minutes. That's 15 miles an hour. I'm not sure what the gradient is, but while some parts of the climb aren't so bad (3% or whatever), some parts are incredibly steep. I have a hybrid and I'm only just getting into riding, so to me that sounds like a superhuman feat, but I know we have some rather good cyclists here...is that even possible?
That's 7500 feet per hour, about 25% faster than the fastest _ever_ climb up, for example, Alpe d'Huez (roughly 1100 meters in 40 minutes).

Methinks not.
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Old 09-12-07, 05:23 AM
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I climbed the Mast in Western Ireland, and it was about 2 miles and rose at 1000 feet. I have been cycling for many years, and I did it a lot less than 15 MPH overall. The last 1/4 mile or so was about 20% grade (it's a service road). In my opinion (as an ex-racer) you would have to be ****-hot to average 15 MPH on a climb like that. Are his thighs like telephone poles?

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Old 09-12-07, 05:45 AM
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takes me about 35 minutes to do 2.5 miles over 500ft, so i'd go with the superhuman option!
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Old 09-12-07, 07:19 AM
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Did he conveniently omit mentioning the little electric motor strapped to his bicycle?

If he can really do it, he's way fast.
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Old 09-12-07, 11:56 AM
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I don't know him that well, so I can't say if he lies a lot, but he's a nice guy, and I believe he was on the track and soccer teams. That being said, he said he did this at the end of a 25 mile ride.
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Old 09-12-07, 12:50 PM
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Originally Posted by stokessd View Post
I climbed the Mast in Western Ireland, and it was about 2 miles and rose at 1000 feet. I have been cycling for many years, and I did it a lot less than 15 MPH overall. The last 1/4 mile or so was about 20% grade (it's a service road). In my opinion (as an ex-racer) you would have to be ****-hot to average 15 MPH on a climb like that. Are his thighs like telephone poles?

Sheldon
I sure hope not. To be climing that fast, his legs better be like pipe cleaners.
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Old 09-12-07, 02:44 PM
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I think this falls into the “older I get the better I was “category.
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Old 09-12-07, 03:25 PM
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According to the cycling power calculator, thats 8 minutes of 600+ watts, don't think so
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Old 09-12-07, 03:35 PM
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if he did he has the wrong job right now...call him a liar.
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Old 09-12-07, 07:22 PM
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On a motorcycle.
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Old 09-12-07, 10:42 PM
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Originally Posted by jschu View Post
I know a guy who claims he made it up a brutal 2 mile climb that rises 1000 feet in 8 minutes. That's 15 miles an hour. I'm not sure what the gradient is, but while some parts of the climb aren't so bad (3% or whatever), some parts are incredibly steep. I have a hybrid and I'm only just getting into riding, so to me that sounds like a superhuman feat, but I know we have some rather good cyclists here...is that even possible?
No way.

There's a hill climb around here that's 2 miles and 1000'. The record for it is 11:34, by a really fast climber, and that's less than 10.5 MPH.
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Old 09-12-07, 11:35 PM
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Originally Posted by Crash716 View Post
if he did he has the wrong job right now...call him a liar.
Heh. He should be a pro racer. Or a politician.
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Old 09-13-07, 01:42 AM
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Here's a back-of-the-envelope calculation of power required to do it. The change in potential energy div. by time taken to make it = power output. Will use physical quantities in meter-kilogram-second units to eliminate weird conversion factors & make the calculation easiest.

Suppose the bike & rider are 100 kg, 220 lbs. A little heavy but bear with me. Vertical height change, 1000 ft, roughly 300 m. Accel. of gravity is 9.8 m/s^2. Potential energy gain (mks units) is mass * accel. of gravity * vertical height; 100 * 9.8 * 300, roughly 300,000 kg m^2 / s^2, 300,000 joules potential energy change.

Now, he has 8 min to do this. 480 sec. 300,000 / 480 = 675 joules / sec. That's 675 watts just for the climb. (Suppose the bike+rider weighs 3/4 as much, ~165 lbs: multiply by 3/4 to get ~506 watts). To that, add roughly the amount of power it takes to go the same speed on a flat road. I don't have a feel for whether this is possible for someone, sure it isn't possible for me.

Last edited by duffer1960; 09-13-07 at 02:13 AM. Reason: to improve clarity -- is this a burden for the servers to do this repeatedly?
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Old 09-13-07, 07:37 AM
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Originally Posted by jschu View Post
I know a guy who claims he made it up a brutal 2 mile climb that rises 1000 feet in 8 minutes. That's 15 miles an hour. I'm not sure what the gradient is, but while some parts of the climb aren't so bad (3% or whatever), some parts are incredibly steep. I have a hybrid and I'm only just getting into riding, so to me that sounds like a superhuman feat, but I know we have some rather good cyclists here...is that even possible?
Tell him the BFers said his thread is useless without pics.
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Old 09-13-07, 08:53 AM
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Originally Posted by njm View Post
Tell him the BFers said his thread is useless without pics.
I forgot to mention, he's in really good shape:

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Old 09-13-07, 09:11 AM
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11% for two miles, no freaking way
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Old 09-13-07, 11:42 AM
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Originally Posted by Oley View Post
I think this falls into the “older I get the better I was “category.
Have that on my"T".

It would be possible but I think it would be by a Cat 2 or higher rider and I ain't one of those. 15mph would be the average and up an 11% slope. That would be steep after about 500Yards at that speed.
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