Hollow Aluminum 130BCD Crankset With 170Mm Crank Arm Single Speed Chainring 50T-58T For Road Bike Mountain Bike Folding Bike(black crank +50T)

Description：*Made of high-quality materials,*CNC machined AL6061 aluminum offers the perfect blend of light weight and strength*The chainring is compatible with 9spd, 10spd, 11spd chain.*suit for most bikes,folding bikes，road bikes，ebikes，Fully CNC machined narrow-wide chainring for single ringSpecification:*Crank Description:Material: AL6061 aluminum alloyArmlength: 170mmfor BCD: 130mmSpindle Interface: Square HoleWeight: about 525g*Chainring description:Material: CNC AL7075 aluminum alloyNarrow and wide teeth chainring / single speedColor: Blackfor BCD: 130mmTeeth: 50T 52T 54T 56T 58TWeight: 85/88/92/98/103gDiameter: 208/216/224/231/242mmCompatible chain speed: 9/10/11 speedPackage included:list1:1x cranklist2:1x crank ,1x chainring，1set chainring screw

• 【Ultralight and Lasting】The crankset is made of materials, ensuring its durability and longevity. The CNC machined AL6061 aluminum construction provides the perfect balance between light weight and strength, making it ideal for various bike types including folding bikes, road bikes, and ebikes.
• 【Versatile Chainring Compatibility】The chainring is compatible with 9spd, 10spd, and 11spd chains, offering flexibility and convenience for different gear setups. It is specifically designed as a narrow-wide chainring for single ring use, ensuring reliable chain retention and performance.
• 【Wide Range of Teeth Options】Choose from a range of teeth options (50T, 52T, 54T, 56T, 58T) to suit your specific riding needs. Each chainring is CNC machined from AL7075 aluminum alloy, providing lightweight and high-strength performance. The black color adds a sleek and stylish touch to your bike.
• 【Precise Specifications】The crank arm has a length of 170mm and a (Bolt Circle Diameter) of 130mm. The spindle interface features a square hole design. The chainring diameter varies based on the teeth option, ranging from 208mm to 242mm. These precise specifications make sure optimal compatibility and performance.
• 【Complete Package】The package includes a crank and the options for a chainring and chainring screws. With this complete package, you have everything you need for easy installation and setup. Enjoy the reliability and performance of ultralight hollow crankset.