Bike Hub Axle Adapter 12mm / 15mm To 9mm 7075 Aluminum Alloy Quick Detachable Hub Axle Adapter For MTB Road Bike Wheel

& wear-resistant - Made of 7075 aluminum alloy material, strong, non-deformable, high strength, wear-resistant. Lightweight - Lighter than other materials, does not increase the burden of bicycles.Simple to operate and easy to use. Professional accessory - Change the barrel shaft 15 MM to 9MM / 12 MM to 9MM quick release.Please carefully observe the size before purchase to avoid the trouble caused by replacement due to the wrong size. More stable - Both sides of the product are equipped with aprons, which can reduce the shaking and play a protective role. Equipped with aprons - so that the tightness between the installed barrel shaft and the hub is higher.In addition, 4 spare aprons are distributed.Description Type Bicycle saddle Material polyurethane Applicable models mountain sports cars size one size Color 189 black red 189 black blue 188 black red 188 black blue Package List 1 seat Note The colors deviation might differ due to different monitor settings Manual measuring please allow 1 3mm errorthank you