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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.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
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https://zerofrictioncycling.com.au/
https://zerofrictioncycling.com.au/wp-content/uploads/2018/10/Ultrasonic-Clean-Race-Chains-Quick-guide-v3-converted.pdf