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New top story on Hacker News: Shimano’s three-pulley rear derailleur could revolutionise drivetrain design

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New top story on Hacker News: Shimano’s three-pulley rear derailleur could revolutionise drivetrain design New top story on Hacker News: Shimano’s three-pulley rear derailleur could revolutionise drivetrain design Reviewed by Qamar javed on February 19, 2023 Rating: 5

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