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post #31 of 35 (permalink) Old 01-09-2013, 05:55 AM
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post #32 of 35 (permalink) Old 04-08-2013, 09:51 AM
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One thing to keep in mind is that braking distance squares with every doubling in speed. So in addition to reaction time, you also have that to consider. Doubling your speed approximately quadruples stopping distance (assuming no brake fade).
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post #33 of 35 (permalink) Old 04-08-2013, 02:53 PM
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One thing to keep in mind is that braking distance squares with every doubling in speed. So in addition to reaction time, you also have that to consider. Doubling your speed approximately quadruples stopping distance (assuming no brake fade).
And assuming perfect braking abilities.


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post #34 of 35 (permalink) Old 04-08-2013, 03:20 PM
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And assuming perfect braking abilities.
No, not assuming that at all. If you, for example, are not perfect and only give the bike 70% of its best braking, a doubling of speed will still result in a squaring of braking distance.

Braking ability affects distance to brake, but it does not affect the underlying physics that the higher speed results in much higher energy.
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post #35 of 35 (permalink) Old 04-08-2013, 03:21 PM
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No, not assuming that at all. If you, for example, are not perfect and only give the bike 70% of its best braking, a doubling of speed will still result in a squaring of braking distance.

Braking ability affects distance to brake, but it does not affect the underlying physics that the higher speed results in much higher energy.
My apologies. I misunderstood what was being said. You are correct I meant more along the lines of constant braking abilities. A rider should also be aware that they may be more nervous or scared to brake as hard at 100mph than they are at say, 30mph, and so may be able to give it 90% at 30, but only maybe 60% at 100mph.


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