Shimano HG50 9 Speed Mountain Bike Cassette Review Posted by GiantPandaisy June 26, 2018 in Drivetrain Components 9-Speed HG Sprockets deliver fast, quiet and smooth shifts 229 grams (11-25) • 9-Speed• HG Sprockets deliver fast, quiet and smooth shifts • 229 grams (11-25) Brand: Shimano Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors