Show HN: I made a vertical-pedalling bike with a novel drivetrain [video] | Dark Hacker News

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Show HN: I made a vertical-pedalling bike with a novel drivetrain [video] | Dark Hacker News

Show HN: I made a vertical-pedalling bike with a novel drivetrain [video](youtube.com)

26 points by tonyonodi 13 days ago | 0 comments

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