Features: Engineered with a six pawls/three teeth freehub design, this bike hub delivers superior chain engagement, optimizing power transfer efficiency. Aluminum body ensures durability, featuring compatibility for 8-12 speed drivetrains and smooth 2+4 bearing configuration. Ideal for cyclists seeking responsive acceleration during technical climb or high speed descents, particularly those upgrading drivetrain precisions. Performs exceptionally on singletracks, endurances races, and variable terrains where reduced freehub drag and safe gear transiting matter most. Precisions splines and bearing placement minimize rotational friction, great for riders prioritizing longevity in extreme muddy/wet conditions. Specifications: Materials: Aluminum Alloy Color: As The Picture Shows Package Weight: approx.500g Styles: (Optional) 6 Styles are Available as Shown in the Picture. Size: approx.14.8x1.5cm/5.82x0.59in Package Includes: 1Pc Bicycles Hub Base note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!