[python] AW: hands free braking aka coaster brake component
- From: Gerald<bepb@xxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Mon, 9 Apr 2012 14:42:48 +0200
Hi,
yes, the limits concering gear range and options is certainly the drawback off
the coaster break.
Also, I recently had to learn that the internal gear hubs are not as care free
as I expected. After my gear hub failed I have been told by a dealer that I am
supposed to dismantle the internals off the hub each year and dose it in oil!
I have been told that some hand cycles offer an option to break by 'kick back'
while using a derailer. But I have yet not seen the solution.
On the other hand, if you are willing to pay for a Schlumpf Speed Drive even
the gear range off a 8 or 9 speed coaster break hub can be significant extended.
Gerald
-----Ursprüngliche Nachricht-----
Von: Mike Power <mpower.lists@xxxxxxxxxxxx>
An: python@xxxxxxxxxxxxx
Gesendet: Sonntag, 08. April 2012 23:53:19 GMT+00:00
Betreff: [python] hands free braking aka coaster brake component
I really like the idea of hands free braking. But I do not like the idea of
being constricted to the components that support it. As the only components
that support it are hubs, and I do not find coaster brake hubs to have all the
features I am looking for.
One thought I had was to engage a more traditional brake system (disc brakes,
rim brakes) with a reverse in the drive system. Unless you are doing a fixie
(in which case you don't want a coaster brake anyway) then reverse pedaling is
an unused dimension of the bicycle. Not pedaling at all, and reverse pedaling
are no different when it comes to the physical dynamics of the bicycle.
One concept would be to install a free wheel to the left side of the crank.
Put a cable or loop of cable on the free wheel and mate the cable to some sort
of brake. When you are pedaling forward the crank should be engaging the drive
train and the brake freewheel should be slipping. When you are pedaling
backward the crank should be engaging the brake system and the drive freewheel
should be slipping.
Thoughts? Does something like this already exist?
Mike Power
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