Used but plenty of life left in it. This is ultegra 12 speed 11-30 Feel free to ask for more photos if required The Shimano Ultegra CS R8100 12 Speed Cassette 11-30 is a high-quality bike component designed for road bikes, time trial/triathlon bikes, cyclocross bikes, and racing bikes. Made from a combination of aluminium and steel, this cassette features a durable construction with a sleek silver finish. With 12 speeds and a range of 11 to 30 teeth, this cassette is compatible with Shimano road bikes and is manufactured in Japan by the renowned brand Shimano. It is a perfect choice for cyclists looking for reliability and performance in their gear system.