The Shimano SLX 10 Speed Cassette is designed to give you high quality performance at a reasonable price. The SLX 10 Speed Cassette features Shimano's Hyperglide sprockets to give this cassette specifically positioned ramps and tooth profiles to give you faster and more responsive shifting. With it's lightweight and stiff design, the Shimano SLX 10 Speed Cassette is a great edition to your Shimano equipped bike. The sprocket sizes are 11-12-14-16-18-20-22-25-28-32. This cassette features an 11-32 ratio and includes a lockring and the technical manual.