A Shimano cassette with 9 speeds is an excellent choice for cyclists looking for flexible, reliable shifting performance. The Shimano group code for this model is M4000 and the model year is 2014. This cassette has a resistance of 11-36T, which means there are nine different gears to choose from. This offers a wide range of gear options, making it easy to switch between different sites and speeds. The Shimano type is HG, which stands for Hyperglide, a technology that ensures fast and smooth switching actions. Brand: Shimano Group Shimano: Shimano Group code Shimano: M4000 Model code Shimano: CS-HG400-9 Model year: 2014 Number of speeds: 9 speed Type of Shimano: Hg Resistance: 11-36T