Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-13-09, 02:52 PM   #1
Velomancer
Ridin'
Thread Starter
 
Velomancer's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 435
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Bike Facts and myths - help please

.....

Last edited by Velomancer; 05-14-09 at 08:29 PM.
Velomancer is offline   Reply With Quote
Old 05-13-09, 06:28 PM   #2
annc
Senior Member
 
Join Date: Jun 2008
Bikes:
Posts: 428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What country is this for? I ask because very few people in the US will know what "1037kms on the energy equivalent of a single litre of petrol" means.

Also, is it necessary to use the term "Western Diseases?" The text would read better (and less political) without the phrase.
annc is offline   Reply With Quote
Old 05-13-09, 06:52 PM   #3
martianone
Senior Member
 
Join Date: Dec 2006
Location: Northern VT
Bikes: recumbent & upright
Posts: 1,870
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Velomancer View Post
As part of our first national Cycle 2 Work Day I am compiling a series of small ads for press, radio and television. The format is simple, a one sentence statement and qualification/explanation.

EG
[

"On your bicycle you can travel up to 1037kms on the energy equivalent of a single litre of petrol.
We all know cycling is one of the most beneficial forms of transport. It saves you money. A bike costs very little after the initial purchase. You may have to buy a spare tube once in a while and some oil for lubrication but apart from that cycling is FREE.

I have quite a few but need a lot more... feel free to add yours... THANKS!
WOW- what is the source for 1037 km/L ? That works out to little over 2400 mpg, usually a value
of around 800 mpg is quoted.
Also- IMHO; while a bike costs much less to operate the a motor vehicle or public transit, I would not agree that cycling is Free. Parts, tune ups and accessories will add to the annual cost of the bike.
martianone is offline   Reply With Quote
Old 05-13-09, 06:55 PM   #4
Velomancer
Ridin'
Thread Starter
 
Velomancer's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 435
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
.....

Last edited by Velomancer; 05-14-09 at 08:41 PM.
Velomancer is offline   Reply With Quote
Old 05-13-09, 07:23 PM   #5
AndrewP
Senior Member
 
Join Date: Sep 2001
Location: Montreal
Bikes: Peugeot Hybrid, Minelli Hybrid
Posts: 6,521
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You dont waste time commuting by bike, you gain quality recreation time
AndrewP is offline   Reply With Quote
Old 05-13-09, 07:32 PM   #6
Zan
Senior Member
 
Zan's Avatar
 
Join Date: Oct 2007
Location: Waterloo, ONT
Bikes: Road: Trek 1.5 (2007). Mountain: Santa Cruz Chameleon (2008). Beater: Peugeot Recorde du Monde (1850)
Posts: 1,417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Velomancer View Post
"On your bicycle you can travel up to 1037kms on the energy equivalent of a single litre of petrol.”
We all know cycling is one of the most beneficial forms of transport. It saves you money. A bike costs very little after the initial purchase. You may have to buy a spare tube once in a while and some oil for lubrication but apart from that cycling is FREE.
Apparently one gallon of american petrol contains about 31000 kcal.

http://auto.howstuffworks.com/question527.htm

that about 8200kcal per liter. I've read that a cyclist moving at 19mph burns about 800kcal per hour. that means 1000kcal gets him 24miles, or about 196miles per liter (313km)

I think that number is a touch off.

I'll eat 8200kcal in two days. There's no way i can ride 1000+km at my regular pace on that much "fuel" (and for people like Mackha () who will challenge me on this, I understand that a lot of energy goes to just keeping the body alive, and NOT riding a bike!).

http://www.caloriesperhour.com/index_burn.php

Last edited by Zan; 05-13-09 at 07:39 PM.
Zan is offline   Reply With Quote
Old 05-13-09, 07:46 PM   #7
Velomancer
Ridin'
Thread Starter
 
Velomancer's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 435
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by AndrewP View Post
You dont waste time commuting by bike, you gain quality recreation time
That's more like it.... thanks AndrewP
Velomancer is offline   Reply With Quote
Old 05-13-09, 07:54 PM   #8
Velomancer
Ridin'
Thread Starter
 
Velomancer's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 435
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
........

Last edited by Velomancer; 05-14-09 at 08:38 PM.
Velomancer is offline   Reply With Quote
Old 05-13-09, 08:07 PM   #9
doctor j
Senior Member
 
Join Date: Aug 2006
Location: Central Louisiana
Bikes:
Posts: 2,875
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I've found cycling to be a great stress reliever. No catchy phrase to say it, but it's the truth.
doctor j is offline   Reply With Quote
Old 05-14-09, 10:02 AM   #10
Zan
Senior Member
 
Zan's Avatar
 
Join Date: Oct 2007
Location: Waterloo, ONT
Bikes: Road: Trek 1.5 (2007). Mountain: Santa Cruz Chameleon (2008). Beater: Peugeot Recorde du Monde (1850)
Posts: 1,417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It's a chance to listen to the birds on your morning commute (I love riding out to school listening to birds waking up in the trees!).

you can rephrase it however you want
Zan is offline   Reply With Quote
Old 05-14-09, 10:28 AM   #11
Pat
Senior Member
 
Join Date: Jan 2002
Location: Orlando, FL
Bikes: litespeed, cannondale
Posts: 2,795
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Velomancer View Post

EG
On your bicycle you protect yourself against the 'Western Diseases' of heart disease, diabetes, high blood pressure, obesity and stress.
All the evidence show regular exercise guard against 'Western*Diseases' and riding bicycle is one of the most fun ways to get this exercise.

I have quite a few but need a lot more... feel free to add yours... THANKS!
Well, this one is a big overstatement.

Aerobic exercise can be a treatment for stress. But it does not eliminate the stress or the effects of the stress. It just attenuates the stress and its effects. Also, the relief of stress is short lived. The cause of the stress is usually still around after the ride is over.

Heart disease, high blood pressure, diabetes, and obesity are all very much diet related. In cultures with low fat and mostly complex carbohydrates, these things are almost unknown. Also in those cultures, people over consuming calories is pretty rare.

Cycling does burn calories. If you burn enough calories, you can reduce the above effects. But if you consume saturated fats in quantity, I doubt that any amount of cycling is going to protect you from high blood pressure and heart disease.
Pat is offline   Reply With Quote
Old 05-14-09, 11:02 AM   #12
Zan
Senior Member
 
Zan's Avatar
 
Join Date: Oct 2007
Location: Waterloo, ONT
Bikes: Road: Trek 1.5 (2007). Mountain: Santa Cruz Chameleon (2008). Beater: Peugeot Recorde du Monde (1850)
Posts: 1,417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nothing but arguments here!
Zan is offline   Reply With Quote
Old 05-14-09, 11:37 AM   #13
Velo Dog
Senior Member
 
Join Date: Jun 2004
Location: Northern Nevada
Bikes:
Posts: 3,802
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by annc View Post
What country is this for? I ask because very few people in the US will know what "1037kms on the energy equivalent of a single litre of petrol" means.

Also, is it necessary to use the term "Western Diseases?" The text would read better (and less political) without the phrase.
FWIW, I agree on the first item...Americans (I'm one) proudly maintain their ignorance of the metric system. I'd be surprised if more than about 1 in 10 could tell you how far 1037km is, or explain the relationship of a litre to a gallon (of course of this is for European consumption, ignore both of us).
As for the second...heart disease and other maladies ARE western diseases, and I'd have no problem with you calling them that. My only concern is that we're so self-referential that many people won't know what you're talking about.
Some years ago Volkswagen did an ad explaining that it was cheaper to fuel a VW to drive some number of miles than to fuel a human to run the same distance, using gas at whatever it cost per gallon in those days vs. a fast food hamburger at whatever that cost. Something like that might be entertaining: "If you drive a car that gets 20mpg, fuel to drive 10 miles will cost you $1.15. If you ride your bike 10 miles, fuel for your body will cost 73 cents," or whatever figures you work out.
Velo Dog is offline   Reply With Quote
Old 05-14-09, 11:51 AM   #14
EatMyA**
Senior Member
 
EatMyA**'s Avatar
 
Join Date: Dec 2006
Location: Southern California
Bikes:
Posts: 930
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
wrong time

wrong place OP
EatMyA** is offline   Reply With Quote
Old 05-14-09, 12:09 PM   #15
bbattle
.
 
bbattle's Avatar
 
Join Date: Aug 2005
Location: Rocket City, No'ala
Bikes: 2014 Trek Domane 5.2, 1985 Pinarello Trevisio, 1991 Colnago Master, '06 Bianchi San Jose, 1987 Moulton Fuso, 1990 Gardin Shred, '82 John Howard(Dave Tesch)
Posts: 12,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Back when gasoline was ~$4.00/gal, a reporter friend wanted to interview me since he'd heard I rode my bike to work. He was doing a story on things people had changed in their lives since gasoline was so much more expensive.

I begged off because I don't ride my bike to save gasoline. I ride because it's fun and a good way to unwind and relax. Also good exercise. And I live only 3.5miles from home so the gasoline savings would be minimal.

As a chemist, I despise the Imperial measurement system but for common things like distance and temperature(outside the lab); I will use miles and Fahrenheit and avoid trouble.
bbattle is offline   Reply With Quote
Old 05-14-09, 12:14 PM   #16
Velomancer
Ridin'
Thread Starter
 
Velomancer's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 435
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by EatMyA** View Post
wrong time

wrong place OP
Very true... ask for a bit of help and all you get is b i t c h i n g... this forum has really turned to shyte.

I'm off.

Last edited by Velomancer; 05-14-09 at 12:31 PM.
Velomancer is offline   Reply With Quote
Old 05-14-09, 12:30 PM   #17
Velomancer
Ridin'
Thread Starter
 
Velomancer's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 435
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
.......

Last edited by Velomancer; 05-14-09 at 08:37 PM.
Velomancer is offline   Reply With Quote
Old 05-14-09, 12:49 PM   #18
JPMacG
Senior Member
 
Join Date: Dec 2006
Location: Bucks County, PA
Bikes:
Posts: 400
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think that catchy phrases may strike a nerve with some in the U.S. We get them constantly from advertisers, especially for drugs and 'health' foods. They are often partial truths, deliberately misleading, or even outright lies. So we (or at least I) tend to shun them.
JPMacG is offline   Reply With Quote
Old 05-14-09, 12:55 PM   #19
Machka 
Long Distance Cyclist
 
Machka's Avatar
 
Join Date: Jan 2003
Location: I ride where the thylacine roamed!
Bikes: Lots
Posts: 45,716
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 62 Post(s)
Quote:
Originally Posted by Velo Dog View Post
FWIW, I agree on the first item...Americans (I'm one) proudly maintain their ignorance of the metric system.
Quote:
Originally Posted by JPMacG View Post
I think that catchy phrases may strike a nerve with some in the U.S.

The OP clarified that this isn't for the US. BikeForums is international ... there are lots of people from countries other than the US here.
Machka is offline   Reply With Quote
Old 05-14-09, 01:06 PM   #20
Machka 
Long Distance Cyclist
 
Machka's Avatar
 
Join Date: Jan 2003
Location: I ride where the thylacine roamed!
Bikes: Lots
Posts: 45,716
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 62 Post(s)
Quote:
Originally Posted by Velomancer View Post
I hear ya! Gone are the days when fellow cyclists would fill a thread like this with their knowledge, humor and wisdom.
Bicycle facts require research and validation. Sure we could all spew little one-liners about cycling ... but who knows if they are true or not.

If I were driving down the road with my radio on, and I heard a bunch of little one-liners about cycling (or anything at all for that matter), my first thought would be ... "Prove it". My first thought when I read your examples was "Prove it" ... back it up with actual peer-reviewed journal articles, experiments, etc..

I just graduated with another degree from University, and one of the biggest problems Universities are having these days is students who just say a bunch of stuff in their papers without backing it up. In the worst case, they call that plagiarism ... at best you'll just have your professor writing, "Where's your evidence?" in the margins.


Or are you just after bicycle myths? Those we can probably come up with!
Machka is offline   Reply With Quote
Old 05-14-09, 01:22 PM   #21
The Human Car
-=Barry=-
 
The Human Car's Avatar
 
Join Date: Apr 2006
Location: Baltimore, MD +/- ~100 miles
Bikes:
Posts: 4,077
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Zan View Post
Apparently one gallon of american petrol contains about 31000 kcal.

http://auto.howstuffworks.com/question527.htm

that about 8200kcal per liter. I've read that a cyclist moving at 19mph burns about 800kcal per hour. that means 1000kcal gets him 24miles, or about 196miles per liter (313km)

I think that number is a touch off.

I'll eat 8200kcal in two days. There's no way i can ride 1000+km at my regular pace on that much "fuel" (and for people like Mackha () who will challenge me on this, I understand that a lot of energy goes to just keeping the body alive, and NOT riding a bike!).

http://www.caloriesperhour.com/index_burn.php
The discrepancy comes in on how hard you pedal at speeds of 10mph you consume far fewer calories.

Quote:
It takes less energy to bicycle one mile than it takes to walk a mile. In fact, a bicycle can be up to 5 times more efficient than walking. If we compare the amount of calories burned in bicycling to the number of calories an automobile burns, the difference is astounding. One hundred calories can power a cyclist for three miles, but it would only power a car 280 feet (85 meters)!
http://www.exploratorium.edu/cycling/humanpower1.html
__________________
Cycling Advocate
http://BaltimoreSpokes.org
. . . o
. . /L
=()>()
The Human Car is offline   Reply With Quote
Old 05-14-09, 02:44 PM   #22
umd
Banned
 
umd's Avatar
 
Join Date: Sep 2005
Location: Santa Barbara, CA
Bikes: Specialized Tarmac SL2, Specialized Tarmac SL, Giant TCR Composite, Specialized StumpJumper Expert HT
Posts: 28,387
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by martianone View Post
IMHO; while a bike costs much less to operate the a motor vehicle or public transit, I would not agree that cycling is Free. Parts, tune ups and accessories will add to the annual cost of the bike.
And FOOD.
umd is offline   Reply With Quote
Old 05-14-09, 05:23 PM   #23
Zan
Senior Member
 
Zan's Avatar
 
Join Date: Oct 2007
Location: Waterloo, ONT
Bikes: Road: Trek 1.5 (2007). Mountain: Santa Cruz Chameleon (2008). Beater: Peugeot Recorde du Monde (1850)
Posts: 1,417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
perhaps it's due to the long winter and constant bad weather we've had here in much of NA.
Zan is offline   Reply With Quote
Old 05-14-09, 05:45 PM   #24
JanMM
rebmeM roineS
 
JanMM's Avatar
 
Join Date: Jan 2006
Location: In Central IN
Bikes: RANS V3, RANS V-Rex, RANS Screamer
Posts: 13,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
'Bicycling - it's a lot of fun if you enjoy it!'
__________________
RANS V3 - Ti, RANS V-Rex - cromo, RANS Screamer - cromo
JanMM is offline   Reply With Quote
Old 05-14-09, 06:07 PM   #25
prathmann
Senior Member
 
Join Date: Nov 2008
Location: Bay Area, Calif.
Bikes:
Posts: 5,997
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Quote:
Originally Posted by The Human Car View Post
The discrepancy comes in on how hard you pedal at speeds of 10mph you consume far fewer calories.
Maybe, but the originally quoted figure does appear to be much higher than other estimates that I've seen. Your figure of 100 kcal/3 miles from the Exploratorium is equivalent to a little under 400 km/liter of gasoline and is consistent with figures I've gotten from calculations of work performed in typical (i.e. touring pace) cycling. Getting over 1000 km/l would imply a very lightweight cyclist going very slowly. [And giving the figure as 1037 rather than about 1000 implies an unwarranted degree of precision.]

And to the OP: this is an open discussion group and the discussion will be taken in various directions by the interests of the participants. Expecting everyone to answer your request in exactly the way you might desire is not a reasonable expectation.
prathmann is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 04:11 PM.