Features1High-strength aluminum alloy construction for enhanced durability and rigidity. 2170mm crank arm length and single chainring with 32/34/36/38T options. 3Compatible with 8/9/10/11/12 speed systems. 4Fits most bike models, interchangeable with mainstream hollow integrated chainrings. 5Lightweight design with anti-drop chain feature for smooth and secure cycle.SpecificationThis mountain bike crankset is made of high-strength aluminum alloy, ensuring durability and rigidity. It features a 170mm crank arm length and a single chainring with 32/34/36/38T options. The crankset is compatible with 8/9/10/11/12 speed systems and fits most bike models.Features:High-strength aluminum alloy construction for enhanced durability and rigidity.170mm crank arm length and single chainring with 32/34/36/38T options.Compatible with 8/9/10/11/12 speed systems.Fits most bike models, interchangeable with mainstream hollow integrated chainrings.Lightweight design with anti-drop chain feature for smooth and secure cycle.Specifications:Material: Aluminum AlloySpeed: 8/9/10/11/12Speed Bottom Bracket: BB68/73mmCrankset and Hollow Axle Length: 118mm/4.6in AxleDiameter: 24mm/0.9inWeight:32T+Crank+BB about 841g/29.7oz34T+Crank+BB about 850g/29.7oz36T+Crank+BB about 860g/30oz38T+Crank+BB about 870g/30.7ozNote:Package List:1 x Crankset1 x Bottom Bracket1 x Positive and Negative Tooth Round PlatePackage List1 x Crankset1 x Bottom Bracket1 x Positive and Negative Tooth Round Plate