4 bolt version like this...
http://www.chainreactioncycles.com/Models.aspx?PartnerID=79&ModelID=17283
had it on my bike for a month or so before going back to a singlespeed set up - it bolts on in place of your inner chainring to help keep the chain on when running 1x9 for example.
good condition with just a few wee marks.
£13 posted.
can provide pics if wanted.
eck
