Any cheap crank will be fine, there's a crank the bikefix site with chainguard too, check it out, I would give you the link but I'm on a mobile device.
@edscoble started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Any cheap crank will be fine, there's a crank the bikefix site with chainguard too, check it out, I would give you the link but I'm on a mobile device.