T
Tim McNamara
Guest
jim beam <[email protected]> writes:
> david, you are correct that when the brakes are fully
> effective, maximum braking is defined in terms of the
> above. but it is incorrect to assume that all brakes are
> effective to this level in all conditions. foreign
> material [mud] between the brake pad & the braking surface
> has a substantially negative impact on their friction
> coefficient and can easily cause the brake to not be able
> to approach the above limit.
Mud, perhaps, but not just water as in rain on the road.
> please also remember that not everyone lives in flat
> country like you.
Have you ever been to England? It's not exactly Holland-like
in its terrain. San Francisco type hills are not hard to
find in England.
> in my case, 210lbs [15 stone?] of lard contending with
> several miles of gradient 6" deep in winter effluent are
> not optimum conditions for rim brakes. next time you're in
> the san francisco bay area, you're welcome to borrow my
> guest bike and see what i mean. you'll enjoy it -
> california rain is much warmer than british rain.
You should try Minnesota's winter riding conditions... ;-)
> david, you are correct that when the brakes are fully
> effective, maximum braking is defined in terms of the
> above. but it is incorrect to assume that all brakes are
> effective to this level in all conditions. foreign
> material [mud] between the brake pad & the braking surface
> has a substantially negative impact on their friction
> coefficient and can easily cause the brake to not be able
> to approach the above limit.
Mud, perhaps, but not just water as in rain on the road.
> please also remember that not everyone lives in flat
> country like you.
Have you ever been to England? It's not exactly Holland-like
in its terrain. San Francisco type hills are not hard to
find in England.
> in my case, 210lbs [15 stone?] of lard contending with
> several miles of gradient 6" deep in winter effluent are
> not optimum conditions for rim brakes. next time you're in
> the san francisco bay area, you're welcome to borrow my
> guest bike and see what i mean. you'll enjoy it -
> california rain is much warmer than british rain.
You should try Minnesota's winter riding conditions... ;-)