On Mon Dec 9 10:51:55 2024 Frank Krygowski wrote:
Retrogrouch post:
On another forum, I just read some praise for a utility bike's carbon
belt drive. No rust, no lubrication, no chain dirt. Of course it's
limited to one rear cog, so single speed or hub gear.
ISTM its natural competitor is an old fashioned conventional chain
inside a chain case. AFAIK this has all the advantages of a belt drive,
with further benefit of no need for a detachable rear dropout or other
frame mods. I know industrial chain drives not subject to things like
road dust last nearly forever.
Chain cases have been a bit heavy, and IIRC inconvenient to deal with
when rear tires go flat. But I'd think a modern reinforced plastic (ooh, carbon fiber!!) one could be designed to overcome those problems.
Do such things exist? I recall an unpleasant Irishman praising some
tubular thing that a chain slid through, but it seemed kludgey to me.
Certainly commuters have always benefited from chain cases.
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