SHIMANO HG51 8-Speed Cassette Review Posted by Pelicandy October 22, 2018 in Drivetrain Components 8-Speed Precise and consistent HyperGlide shifting performance. Long leg spacer for further weight reduction. Enlarged sprocket window design for lighter weight. Random Products FSA Mega Exo Bottom Bracket Arc Team Issue #BB-905... Shimano XT M771 10-Speed 16t 4th position Cassette... FSA Vero Crankset Compact Review Connex 10sG link Review Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors