My freewheel on my singlespeed road bike is making a kind of 'thuck-thuk-ah' nose every time I pedal - it makes me sound like a kid pedalling a Raleigh Budgie
It's a new 'Tensile' 18T trials freewheel on a new Goldtech Hub with a new 1/8" chain and 48T Stronglight chainring. The chainline also looks pretty straight and I have about an inch or so of vertical play in the chain. It's really annoying me. Any ideas what could be causing it?
Cheers.

