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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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cake
Option 1: Could someone bore this out for me?
Option 2: Does anyone know of any other (generic or otherwise) brand of collar that has a similar broad and more importantly parallel surface area as the one pictured? (I'm dreading that trawl through eBay where I have to select view 250 option per page...)