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London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
@O'Shane
When I think about it a little more it does seem like a bit much to ask. Say you produce 600w over 15sec from traffic lights. Chain length is about 70 links but only 40 of those would be under stress. That's a fairly spread out stress. Link plates are about 1.2-1.5mm thick I think so 15w isn't going to do much damage.