The SRAM CS-XG-1275 GX Eagle 12-Speed Cassette is a high-quality and durable part designed for various bike types including cruisers, hybrids, folding bikes, dirt jumpers, cyclocross bikes, and electric bikes. Made of stainless steel with a black color, this cassette features a large 50-tooth sprocket for optimal performance. It is compatible with SRAM components and is a great choice for riders looking for a reliable and versatile cassette with a wide gear range of 10 to 50 teeth.