Sta Tru Black Shimano Deore M590 8-9-10 Speed Cassette Hub Rear Wheel (26X1.5-Inch) Made using the highest quality materials Tested for durability Used by exper riders worldwide STW DW double wall 32h rim Cassette 8-9-10 loose bearing hub Bolt-on axle Silver hub / silver spokes / silver rim UCP spokes