On 2017-11-15 16:45, John B. wrote:
On Wed, 15 Nov 2017 15:17:28 -0800, Joerg
wrote:
On 2017-11-14 17:31, John B. wrote:
[...]
Anyhow, there are numerous issues here, not the least being that it is
tough to mount a thick rotor so it still lines up correctly. It may be
possible to machine a part to adapt a motorcycle caliper and I have had
parts machined for my MTB. Requires time though. As I said, first I am
going to see if the 8" rotors are good enough which they very well may
be. 6" in back was clearly not adequate.
Good Lord! A disc is just about the simplest thing that you could
design - two circles one inside the other - and almost the simplest
thing to manufacturer. Even in the wilds of California you should be
able to find either a "home machinist" or a commercial shop to make
them to your specifications.
Take a look at a modern MTB, how much available clearance there is and
then think again about your statement.
One way to do it is to machine out some material in the center. And that
requires ... a machine. As I wrote several times now, if the 8" rotors
are good enough then they are good enough. I shall see.
[...]
But spending the public's taxes on building bike-ways for drunks on
bicycles might be a bit more then most politicians might be willing to
underwrite :-)
Are you prejudiced as well? I never ride drunk.
I pay enough taxes to expect something in return. And yes, that includes
road taxes. $4k alone in property taxes, part of which goes towards
traffic infrastructure. The issue is whether a community is willing to
invest in healthy modes of transportation. Ours is not, Folsom toward
the west of us is. It's that simple.
Ah, but a much healthier means of transportation is a far simpler
method that doesn't even require special paths. Just get up on your
hind legs and walk.
It will result in even higher risk because you'll end up moving along
the side of a 55mph road at 3mph versus 20mph.
Assuming a normal healthy individual you should be able to march (even
with a can of beer in your pocket) at about 3 miles per hour - about 5
kph - for hours on end.
I can assure you that a 5 Km stroll is far more invigorating then a 5
Km ride on a bicycle.
However, walking is boring and sometimes dangerous. There are no
sidewalks out here. Also, I can net 25km or so during the same time I
walk 5km and see a lot more interesting stuff while doing that.
BTW, that thought has crossed my mind as well. Some day when I am almost
competely retired I want to walk some of the singletrack I ride around
here. It's much slower but one hears more where there is none of the din
of a mountain bike. Occasionally I already do it and push my MTB for a
few miles, watching birds and such. You can't do that when having to
concentrate on ruts and stuff.
--
Regards, Joerg
http://www.analogconsultants.com/