I asked a similar question related to slipping gears here:
but now I no longer get slipping, but clicking noise when the pedals are rotated either forward or backward direction, but not when coasting and the pedals are not moving. When in low gear, the clicking is faster and slower in high gear.
Could this clicking be the chain clicking on the sprockets of the gears? What is the source of this noise and how can I fix it? My other Townie 8i does not have this noise.