Features1Aluminum Construction: Crafted from aluminum alloy, this chainring crank set is built for durability and reliability, ensuring a long lasting lifespan that withstands the demands of cycling. 2Universal BCD110mm Compatibility: Designed to the BCD110mm standard size, this crankset fits most cycles crank chainrings, offering versatility and ease of installation for a wide range of cycles. 3Smoother Shifting Performance: The 42T chainring, equipped with a BB68 threaded bottom bracket, guarantees smoother shifting and enhances cycling speed, providing a seamless riding experience for cyclists. 4Flexible Speed Compatibility: Compatible with 9 to 11 speed cycles, this crank arm set caters to different cycling needs, making it adaptable for various types of rides and preferences. 5Precise Engineering: ly crafted with precisely calculated gaps between chainring, this crankset ensures stable transitions during shifting, greatly enhancing the overall cycling experience.SpecificationItem Type: Chainring Crank SetMaterial: Aluminum AlloyTeeth: 42TSpecification: BCD 110mmAxle Diameter: Approx. 24mm/0.9inCompatible: 9 to 11 SpeedBottom Bracket: BB68 Threaded Bottom BracketPackage List1 x Chainring1 x Crank Arm1 x Bottom Bracket2 x Accessories