Features: Experience great cycling performances with our bike crank arm set, designs to significantly reduce weight and enhances agilities and speed on road. Craft from high stength aluminum alloy materials, this crankset offers a great strength to weight ratio, ensuring durability and superior transmission efficiency for varied terrain. Perfect for professional cyclists seek high performances accessories, amateur cycling enthusiasts upgrading their gear, and DIY bike modifiers look for quality part. Great for road cycling, mountain traversing with a road bias, competitive race, and long distances tourings, providing reliable performances and reducing fatigue for enhancs comfort. Featurs precisions machining and a antirust coating, this crankset ensures great detail and longevities, maintaining its smooth appearance while boosting overall bike performances. Specifications: Materials: Aluminum Alloy Color: Black/Silver Package Weight: approx.810g Size: approx.17cm/6.69in (More Size Detail, Please See Picture.) Package Includes: 1 Set of Bike Crank Arm Set note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!