My expereince is much as dommyracer, 8.5 hours run time navigating garmin fomat file with cadence and heart rate, no back light on and lots of capacity left at the finish line, (the garmin that is!)
@Runoutofgears started
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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My expereince is much as dommyracer, 8.5 hours run time navigating garmin fomat file with cadence and heart rate, no back light on and lots of capacity left at the finish line, (the garmin that is!)