Cyclists and bike mechanics, this Miche Primato cassette is a solid choice for your 10-speed Shimano setup! Engineered in Italy with precision machining, this cassette delivers smooth, reliable shifting that's fully compatible with Shimano 10-speed systems. The special heat-treated steel sprockets are built to withstand miles of riding without wearing down quickly, while the CNC finishing and chrome plating give it that quality look and corrosion resistance. The package includes the special heat-treated steel lock ring and resin spacers you need for proper installation. Weighing in at 265g for the 12-21 ratio (or 285g depending on the specific model), it's a respectable weight that won't unnecessarily burden your ride. Whether you're replacing a worn-out cassette or building up a new bike, this Miche option gives you that European quality without the crazy high price tag. The ramping and shift positions are designed to work seamlessly with Shimano components, so you get that crisp, precise gear changes you expect. A reliable upgrade that makes every ride smoother!