Feature 1Aluminum Alloy Material: Bike cranksets made of aluminum alloy, durable, lightweight, stylish, high axial strength and compatibility. 2Stable And Smooth: Higher strength, more stable. Light weight design, adding no heaviness to you bike, make riding more comfortable and relaxing. 3Durable: Bicycle crankset is anodized, which effectively protects the aluminum alloy body and does not fade after long term use. 4High Accuracy: CNC accuracy milling, high strength operation such as mountain, cross country, the force is equal, smooth riding. 5Crank Length: 170mm, forged alloy crank arms with super hardness chromium molybdenum steel shaft easily cope with a variety of high strength force.Item Type: Bike CranksetsMaterial: Aluminum AlloyWeight: Approx. 1119g / 39.5ozLength: 170mm / 6.7in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Center Axis2 x Crank Assembly1 x Installation Tool