Timeline for How much maximum force can be applied by fingers on the brake lever?
Current License: CC BY-SA 3.0
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| Sep 11, 2015 at 20:11 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 20:06 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 19:31 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 19:11 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 18:57 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 18:51 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 18:42 | comment | added | Nhân Lê | I think you can, but you do not want to 'play' parameters that required 500 Newton onto lever (50kg) to stop the bike, nor as little as 50 Newton. But if you are criticising about the bias of certain brake types, I can tell you that with the same tension on cable pull, in general: caliper<cantilever<disc brake | |
| Sep 11, 2015 at 18:36 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 18:30 | comment | added | Daniel R Hicks | The point is that you can "play" with all those parameters and more. Just as you can with the various types of mechanical rim brakes, etc. There is no fundamental superiority of one technology over the other in terms of stopping force. | |
| Sep 11, 2015 at 18:30 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 18:27 | comment | added | Nhân Lê | That is why I didn't give an exact number, but the important point is not about the stopping force the brake can applied. It's about the force and modulation that hands can grip. For example, you can double the cylinder, double the rotor size, but in the end you have too little modulation, i.e. you apply a force of a few newton (few grams) and the bike is completely stopped. | |
| Sep 11, 2015 at 18:20 | history | edited | Nhân Lê | CC BY-SA 3.0 |
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| Sep 11, 2015 at 18:13 | comment | added | Daniel R Hicks | Yes, and it's a long way from your fingers to the brake pads. What happens if you change the diameter or the hydraulic cylinder, eg? | |
| Sep 11, 2015 at 18:11 | comment | added | Nhân Lê | But the question is about force applied by fingers to brake, isn't it? | |
| Sep 11, 2015 at 18:01 | comment | added | Daniel R Hicks | I'm disagreeing with what you're saying. Tribology tells us that the "stopping power" is a function of force per square inch, the frictional coefficient of the surface, and the number of square inches. In no system that I know of is the force applied to the brake pad identical to the force on the brake lever -- there's always some "leverage" involved, and that can be easily adjusted, within reasonable limits, by the designer. | |
| Sep 11, 2015 at 17:56 | comment | added | Nhân Lê | @Daniel So what did you disagree on? The stopping power is about 1.5 to twice as much, using the same grip is what I'm saying. | |
| Sep 11, 2015 at 17:53 | comment | added | Daniel R Hicks | The force needed to activate a brake is a function of the leverage of the entire system, and not significantly dependent on the specific technology. | |
| Sep 11, 2015 at 17:21 | history | answered | Nhân Lê | CC BY-SA 3.0 |