13 - 15 - 17 - 20 - 23 - 26 - 30 Teeth
It is generally a good practice to replace the chain when you replace the cassette.
-This cassette will index with any Shimano-type 7-speed shifter.
-This cassette will fit on any modern Shimano 7 to 10 speed cassette hub
-A spacer (see related items) is needed to use a 7 speed cassette on a 9 or 10 speed hub.
Note: Shimano makes lower priced 7 speed cassettes for entry-level bikes. The HG50 series is their highest quality 7 spd model. Still made in their Japan factory.
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