possibly is a 1/8" chain on a 3/32" freewheel sprocket with a chainline that's a bit off. 1/8" chains tend to skip off 3/32" sprockets in my experience, esp if the chainline's off, even by a few mm.
@taki started
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possibly is a 1/8" chain on a 3/32" freewheel sprocket with a chainline that's a bit off. 1/8" chains tend to skip off 3/32" sprockets in my experience, esp if the chainline's off, even by a few mm.