A
Andrew Webster
Guest
I have recently fitted out one of my bikes witha fixed wheel.
New chain (PC48), new sprocket (cyclo, yes, 3/32), old chainwheel.
I have a problem with continuous chain noise at the rear. It is a continuous metallic "hum".
I have spent a long time ajusting the chain line - it is just about perfect. Before the fixed
sprocket arrived I rode about 50 miles with a single speed freewheel which did not produce the
same noise.
I note that the tooth profile on the sprocket is rather narrower at the point than a multiple
freewheel sprocket (see http://www.sjscycles.com/store/cyclofixedsprocket332.jpg), could this be
the culprit?
Is there an obvious point I am missing here? Is the problem likely to be chain, sprocket,
chainwheel or what?
Thanks for any observations.
Andrew Webster
New chain (PC48), new sprocket (cyclo, yes, 3/32), old chainwheel.
I have a problem with continuous chain noise at the rear. It is a continuous metallic "hum".
I have spent a long time ajusting the chain line - it is just about perfect. Before the fixed
sprocket arrived I rode about 50 miles with a single speed freewheel which did not produce the
same noise.
I note that the tooth profile on the sprocket is rather narrower at the point than a multiple
freewheel sprocket (see http://www.sjscycles.com/store/cyclofixedsprocket332.jpg), could this be
the culprit?
Is there an obvious point I am missing here? Is the problem likely to be chain, sprocket,
chainwheel or what?
Thanks for any observations.
Andrew Webster