Shimano Deore CS-M4100-10 Cassette - 10-Speed 11-42t Silver - SoCal Bike - Oceanside, Carlsbad and north San Diego county's favorite bike shop, Bicycle and ebike rentals, sales, and service
Shimano M6000 11-42t 10 Speed Cassette vs. SunRace MX3 Wide Ratio - YouTube