Re: The Low-Down on Bike ABS, Linked and EVO Brakes

[Ben Barkow <dr.ben@xxxxxxxxx>]

from Steve Makohin:
>
> In your search for why the best stopping power is attained just before 
> wheel
> lockup as opposed to during fully locked wheels (i.e., a skid), 
> realize this
> is not an "ABS vs no ABS" comparison, because ABS is well short of 
> keeping
> the wheels at the threshold of lockup. That's the reason why there are 
>  some
> exceptional scenarios in which a really good braker can get shorter 
> stopping
> distances on a non-ABS bike than with an ABS bike. But back to your
> statement: When you hit the text books in your research, pay particular
> attention to "static" friction. That's for the theory, at least.
>
>

I'm puzzled about ABS. I had assumed that ABS action is triggered by a 
discrepancy between the speeds of the front and rear wheels. Therefore, 
it only comes into play when one wheel (or both!) is just an epsilon 
beyond the point of "gone beyond" relatively-static-like rolling 
friction which is, I thought, already beyond the point of maximum grab 
of the pavement once a wheel starts skidding.

I suppose it is true that a brilliant human braker can beat an ABS 
machine, but there can be lots of reasons for that.

Help please.

Ben
Toronto

Just added write-ups about Oilhead spark plugs, ergonomically correct 
Corben backrest, and various updates.

http://bigmail.ica.net/users/barkow@xxxxxxx/Ben's%20bike%20files/

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