Kích thước Cassette Xe đạp có nghĩa là gì? || REI

If you’ve ever shopped for a new cassette, you’ve seen some confusing numbers; 12-25, 11-46, etc. If you’re curious what those numbers mean, we’re here to help. In this video, Katie explains what the numbers mean and helps you figure out what size cassette is right for you.

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