For overground, you can either take them on the carriage (on shorter lines), or you request a bike ticket, free of charge, which you affix to your cycle and then leave in a storage car at the front/back of the train.
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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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For overground, you can either take them on the carriage (on shorter lines), or you request a bike ticket, free of charge, which you affix to your cycle and then leave in a storage car at the front/back of the train.