Quoted message said:Would like some information on how to prolong chain-life and lower
chain-maintenance via chain-guards and/or enclosed chain baths.
Since chain-care is the most frequent service needed (except for air in
the tires),
I spend more time on flat repair than chain maintenance, and I suspect
that many others do as well.
Quoted message said:and since its one of the dirtiest jobs to do -- it puts
"civilians" off from taking up the bicycle as a Transport alternative.
I don't think that chain maintenance or chain filth is even a blip on
the long-range radar for the average non-rider. The real issues are
convenience, effort, speed, weather issues, vehicular traffic hazards,
cargo capacity, status, and the distances involved. In a town of
10,000, most anywhere should be reachable in a reasonable time on a
bike. In a city of a million, laid out in the typical spiderweb
manner of a car-as-mass-transit US city, it is not unusual for the
distance to some common destination to exceed 20 miles, with a
non-bike-friendly path between them as the only feasible route.
However, assuming for the sake of argument that all of these large
issues had suddenly been rendered inconsequential, and that many
millions of US citizens suddenly found themselves wanting a bike as an
alernative to the automobile for local running about, then a cleaner
chain drive system might be a selling feature in some cases for the
same reasons that it long has been in other places.
Quoted message said:-- How difficult would it be to enclose a chain on a standard MTB or
hybrid style commuter bike with derailler?
Very. In fact, worse than that. I've modeled what it would require,
and the resulting monstrosity would not be acceptable.
Quoted message said:-- How difficult on a bike with hub gear?
A fully enclosed chain system for a single-path chain is easily done
and common in Europe and Japan. No one uses an oil bath. It would be
absurdly expensive and would make flat repair into a much more
difficult task.
Quoted message said:-- Even without an oil-bath enclosure, it seems that a fully-wrapped
chain (Euro-style) would prolong life (keep dirty away) and reduce
maintenance.
It does. The 20-plus-year-old Puch on my patio is proof of this; it
still has its original chain, and has not been lubricated all that
often.
Quoted message said:WHY is this not more readily available (in the US
market)?
Because the average US consumer either wants a cheap bike (ergo, no
extra fripperies like a chain guard) or wants one with lots of gears
and a der system (ergo, once again, no chain guard), or wants a
racy-looking bike (ergo no chain guard) or a mountain bike (ditto)
or...anything *but* the typical European bike. The vast majority of
bikes sold in the US do not have fenders, either, for that matter. Or
generator-driven light systems. Or a tire pump. All of these are
common on European bikes.
But to focus on the single isse you were addressing, in places where
bicycles are already regarded as a more serious form of transport and
living space is less capacious than is typical in the US, the need to
store a bike cleanly in one's own apartment or room has made such
chain guards (and chain alternatives) commonplace. Perhaps we will
see them more widely adopted here at some point, but only time will
tell.
--
Typoes are a feature, not a bug.
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