Size:Rear Batteries included?:No Package Dimensions:19 x 13.2 x 2.7 cm; 213 Grams Features: 1. Made of high quality metal material, firm, durable and long service life. 2. Ultralight, adding no heaviness to training or long time riding. 3. Easy to install and disassemble, convenient to use. 4. Precision machining, high strength and not easy to break. 5. Application: road bike, mountain bike, BMX. 6. Suitable for most bikes with matched length. Specifications: Condition: 100% Brand New Item Type: Bicycle Wheel Hub Axle Material: Metal Bearing: 6000 Optional Type: Front, Rear Front Solid Shaft Distance: 14cm/5.51inch(Approx.) Rear Solid Shaft Distance: 18cm/7.09inch(Approx.) Package List: 1 * Bicycle Wheel Hub Axle Notes: 1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. [Material]: Made of high strength metal material, the bicycle wheel hub axle is durable and not easy to break in using [Lightweight]: This wheel hub axle is super light, it will not increase the amount of training in your training and is suitable for long-term cycling [Application]: Suitable for most bikes with matched length, like road bike, mountain bike, BMX [Simple Installation]: Easy to install and disassemble, you can quickly replace or disassemble, convenient to use [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will help you within 24 hours on weekdays [Material]: Made of high strength metal material, the bicycle wheel hub axle is durable and not easy to break in using [Lightweight]: This wheel hub axle is super light, it will not increase the amount of training in your training and is suitable for long-term cycling [Application]: Suitable for most bikes with matched length, like road bike, mountain bike, BMX [Simple Installation]: Easy to install and disassemble, you can quickly replace or disassemble, convenient to use [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will help you within 24 hours on weekdays