Features: <br> 1. Aluminium alloy material, hollow design, durable and lightweight<br> <br> 2. High strength and deformation resistance<br> <br> 3. Fine machining, extends your bike's life and reduces friction and noise <br> <br> <br> <br> <br> Specification:<br> Material: Aluminium Alloy <br> Color Options: Black; Silver <br> BCD: 130 mm (suitable for 107-100mm)<br> Arm Length: 170 mm/ 6.7 inch <br> Fit for: pedal diameter = 9/16 <br> Weight: Approx. 555 g <br> <br> <br> Package List:   <br> 1 * Pair of Crank Arms <br> <br>