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Bicycle weight doesn't matter? (myth)

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Bicycle weight doesn't matter? (myth)

Old 07-18-18, 03:48 PM
  #176  
52telecaster
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Originally Posted by happy feet View Post
holistically, i think buying a dream bike was a bad decision.
While it may indeed be physically easier to ride, it also appears to have caused a tendency towards arrogance.

What really sucks is, if anything should happen to that dream bike, you are going to hate every moment you have to spend riding the 25lb noodle you used to enjoy.
+1
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Old 07-18-18, 05:02 PM
  #177  
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Originally Posted by Maelochs View Post
From what I have read, on a bike as in a car, the front brake contributes about 70 percent of the braking force because momentum makes the mass rotate around the front axle, lightening the rear end.

So, by using just the front brake, you are losing only a bout a third of your braking potential ... or .... taking a third more time and distance to stop.

I figure, the pros would only use one brake if it didn't matter because to them, grams really matter.

I watched the TdF today (9first mountain stage) and didn't see any bikes with one brake ... but then i didn't see any discs either.
How in the name of God did they possibly get the bikes to slow or stop under control without discs?
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Old 07-18-18, 05:05 PM
  #178  
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Originally Posted by toast3d View Post
Body weight matters way more than bike weight.
My body weighs 175 whether I am on a light bike or a heavy bike.
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Old 07-18-18, 05:17 PM
  #179  
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Originally Posted by Paul Barnard View Post
My body weighs 175 whether I am on a light bike or a heavy bike.
That's an asinine thing for a cyclist to say. Your body weight can be changed up or down depending on diet and activity level. Look at the pros. There's a reason they all look like that. All of them.

edit: Look, I'll even spell it out for you nice and easy. Most of the total weight between bike and rider is from the rider. Now, you can spend a few hundred, to a thousand or a couple thousand dollars losing a few pounds off the bike, or you can loose weight on your body. For free. Hell, you might even save money. That's more money in your pocket. This will increase your efficiency and performance in more ways than one, not the least of which is the amount of aerodynamic drag you have. Most of the aerodynamic drag is not from the bike. It's from you. The effectiveness of fat loss will also increase your power to weight ratio.

And finally, there is the difference between rocking your bike or rocking your body. Rock the bike, and it doesn't cost much energy. Rock your body, and the more you weigh, the more energy it costs. In terms of weight, your body is the biggest factor on the bike, period. It is also the biggest factor in your ability to perform. It's not the bike's weight or how expensive the components are. It's you. It's how light you are, how low your profile is, and how much blood your heart has to pump. The lighter you are, the less work you need to do for the same result. This far outweighs (haha) the impact of any difference in bike weight.

Last edited by toast3d; 07-18-18 at 05:41 PM.
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Old 07-18-18, 06:01 PM
  #180  
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Originally Posted by Paul Barnard View Post
How in the name of God did they possibly get the bikes to slow or stop under control without discs?
Was that sarcasm? Anyway, disc don't necessarily offer superior stopping, however, they are more consistent. That is their biggest true advantage. Now that the pros are allowed to use them, I think we'll be seeing them become universal within a short amount of time.
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Old 07-18-18, 06:12 PM
  #181  
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Originally Posted by KraneXL View Post
disc don't necessarily offer superior stopping
I think they do. Maybe I'm wrong. But I'm pretty confident that they work better for stopping power than rim brakes under all conditions.
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Old 07-19-18, 01:18 AM
  #182  
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Originally Posted by toast3d View Post
I think they do. Maybe I'm wrong. But I'm pretty confident that they work better for stopping power than rim brakes under all conditions.
Maybe?
















Conclusion: Disc are superior overall, just beware the verbs.

Last edited by KraneXL; 07-19-18 at 01:24 AM.
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Old 07-19-18, 04:56 AM
  #183  
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Originally Posted by KraneXL View Post
Maybe?

How Much Faster Can You Stop With Disc Brakes?



How Much Faster Can You Stop With Disc Brakes?











Conclusion: Disc are superior overall, just beware the verbs.
According to the video, not much better in dry conditions, and some negative effects on aerodynamics. That latter point is probably why there aren't more disks on the TDF.

Last edited by livedarklions; 07-19-18 at 04:57 AM. Reason: Typo
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