Shimano HG30 Cassette 7 SpeedViews:
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|Miscellaneous||Shimano HG30 Cassette 7 Speed. Cassettes - MTB. Computer designed Hyperglide (HG) sprockets incorporate specifically positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. Sprockets are cut away to reduce weig .... .|