http://www.gonebikingmad.co.uk/products.php?plid=m4b14s383p88&rs=gb
12,13,14,16,18 and 20T cogs also available separately. Note: If run with smaller than 14T - must be used with 3/32" chain - as 1/8" chain will bite into spacers.
@hippy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
http://www.gonebikingmad.co.uk/products.php?plid=m4b14s383p88&rs=gb
12,13,14,16,18 and 20T cogs also available separately.
Note: If run with smaller than 14T - must be used with 3/32" chain - as 1/8" chain will bite into spacers.