Join Date: Feb 2004
Location: St Peters, Missouri
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Mentioned: 3 Post(s)
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Originally Posted by BlazingPedals
(There are no 48.7 tooth chainrings.)
Actually, there are. Maybe not that particular example, but fractional tooth count sprockets are commercially available.
It's done by carefully machining the sprocket so that the chain doesn't ride all the way down to the root of the cog tooth. Some BMX outfit makes them. And they aren't horrendously expensive either.
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.