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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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@withered_preacher
Almost caved and replaced the silicone o-ring on the Robot as it peed a little water out a few times recently. Instead, I took the old one off and cleaned it and the piston up. Works like a charm now, coming on to 5 years in February with all original parts.