1、Premium Aluminum Alloy Material: All aluminum alloy material, strong and impact resistant, the surface is anodized, which effectively protects the aluminum alloy body. 2、CNC Precise Milling Crankset: Crankset adopts CNC precise milling, high strength operation such as rushing mountain, off road, etc., the force is evenly distributed, and the riding is smooth. 3、Positive and Negative Tooth Design: The narrow and wide teeth tips alternate to more fully engage the chain, which can effectively prevent the chain from falling off during intense riding. 4、Direct Mounted Structure: For GXP direct mounted structure can effectively improve the strength and reduce the weight. The 10 tooth slot is embedded, and the 3 T25 special deer screws are locked, not easy to fall off. 5、With High Bearings: Coming with high bearings that has high accuracy. strong durability and water resistance, the crankset can ensure safer riding. Product name: Bicycle Direct Mounting Crankset Product Material: Aluminum Alloy Product Color: Black Weight: Approx. 959g / 33.8oz Product model: A Set of 36T Black Crankset (with Bottom Bracket) Compatible: 9/10/11/12 Speed Number of Teeth: 36T Disc Diameter: Approx. 151mm 1 x Integrated Crankset 1 x Crank Crankset Leg 1 x Threaded Bottom Axis 1 x Crank Cap 3 x Screw 1 x Disc