SunRace 7-Speed Zinc Bicycle Cassette – M40 Review Posted by GiantPandaisy May 16, 2018 in Drivetrain Components This fits your . Make sure this fits by entering your model number. CSM40.7AV0.US0 4710944245479 Shimano compatible Average weight: 279 grams Cycling Outdoor Recreation Parts & Components Sports & Outdoors SunRace