Keith Willoughby said:Do children have enough finger strength in one hand to lift the rear
wheel off the ground?
Cannondale seem to think that an adult MTBer will only apply a force of
about 22N to the lever:
http://www.ne.jp/asahi/julesandjames/home/disk_and_quick_release/cannondale.html
However, the standard DIN test is 100N. With a very good braking system,
that will just about put a full-sized adult over the bars, so a child
would require less roughly in proportion to their weight. However, their
brakes are also unlikely to be such high quality. Regardless, the
training does not appear to be aimed solely at children, and if this
really was the reason for the advice, it would surely be sensible to
qualify it with the real reason.
It's curious how people seem to be so keen to find some excuse as to why
the advice might be right, rather than simply realising that the
instructors' belief is a commonly held (but wrong) one. My parents
taught me much the same when I was a child. Do you really think they
were considering my hand strength, or other more abstruse details? No,
they were worried about my going over the handlebars, like their parents
before them had been worried. Since they never did much more than some
trundling around as students (and in fact probably never had brakes that
were much good), they never learnt different.
James
--
If I have seen further than others, it is
by treading on the toes of giants.
http://www.ne.jp/asahi/julesandjames/home/