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gears - Difference between Shimano HG51 8-Speed Cassette and Shimano HG50 8-Speed Cassette - Bicycles Stack Exchange
![Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors](https://images-na.ssl-images-amazon.com/images/I/91TZUT8bNmL._AC_UL210_SR210,210_.jpg)
Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors
![Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors](https://m.media-amazon.com/images/I/91TZUT8bNmL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors
![gears - Difference between Shimano HG51 8-Speed Cassette and Shimano HG50 8-Speed Cassette - Bicycles Stack Exchange gears - Difference between Shimano HG51 8-Speed Cassette and Shimano HG50 8-Speed Cassette - Bicycles Stack Exchange](https://i.stack.imgur.com/J5cvz.jpg)
gears - Difference between Shimano HG51 8-Speed Cassette and Shimano HG50 8-Speed Cassette - Bicycles Stack Exchange
![Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors Amazon.com : SHIMANO HG51 8-Speed Cassette (11-28T) : Bike Cassettes And Freewheels : Sports & Outdoors](https://m.media-amazon.com/images/I/31jkMMOofiL._AC_UF1000,1000_QL80_.jpg)