I found this on a local forum, if any fellow Sheffielders are interested:
http://www.ridesheffield.org.uk/2013/02/free-security-bike-marking-at-over-ride-cycleworks/
I'm going to take my bike along, and have a nosey at the new bike shop too
http://www.ridesheffield.org.uk/2013/02/free-security-bike-marking-at-over-ride-cycleworks/
I'm going to take my bike along, and have a nosey at the new bike shop too