9 Speed Cassettes

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Mountain bike cassettes are available in various speeds, ranging from 7-speed to 12-speed. 7-speed cassettes are less common now and have been largely replaced by 8, 9, and 10-speed cassettes, while 11 and 12-speed cassettes have become increasingly popular in recent years. The number of speeds a cassette has typically corresponds to the number of gears on the bike’s rear derailleur, with more speeds providing a wider range of gears and more precise shifting.