Features1 CRAFTSMANSHIP, COMPATIBLE: This crankset is expertly manufactured to be both lightweight and resilient, making it compatible with 9 to 12 speed cycles. 2HOLLOW INTEGRATED DESIGN: Featuring a unique hollow integrated design, this crankset minimizes weight while maximizing power transfer. This innovative construction enhances your overall cycling experience. 3ROBUST ALUMINUM ALLOY MATERIAL: Crafted from aluminum alloy, the crankshaft is strong and not easy to get rusty. This makes it ideal for long term use under various conditions. 4ROAD CYCLE: Designed for versatility, this crankset is suitable for most road cycle models. Its easy to swap structure allows you to upgrade your equipment without any hassle. 5ACCURATE ENGINEERING: With accurately machined components, this crankset runs smoothly to provide stable and dependable power output. Enjoy a good cycling experience that meets all your performance demands effortlessly.SpecificationItem Type: Cycle CranksetMaterial: Aluminum AlloyChainring: 50T to 34TSpecification: BCD 110mm / 4.33inAxle Diameter: 24mm / 0.94inAxle Length: 135mm / 5.31inCompatibility: 9-12 SpeedBottom Bracket: BB Bottom Bracket (68-73mm / 2.68-2.87in)Package List1 x Chainring1 x Crank1 x Bottom Bracket2 x Accessory