🌟Features: 【Ultra-light Material】Crank and Chainring made of high strength aluminum alloy, light weight, stylish, flashy styling, high axial strength and compatibility. 【Professional Design】Ergonomic structure,Super lightweight and incredibly strong.Best choice for riders who want more control on their bicycles. 【ZEROING Crank Size】BCD: 104mm/4.09in. Crank Arm length: 170mm/6.69in, Crank related holes distance: 74mm/2.91in. [Easy Installation and compatibility.] Compatible with most mountain bikes and dirt bicycles. Including not confined to Shimano, FSA, Giant ATX770 ATX770-D XTC 750. 🌟Crank Description: - Model: 104BCD Mountain Bike Crankset - Crank Length: 170mm - Installation Type: 104BCD - Crank Material: 6061 T6 Aluminum Alloy - Axle Material: Chromium molybdenum steel - Surface Treatment: Anodic Oxidation - Crank Support Speed: 7/8/9/10/11/12speed - Compatible: Single Chainring, Double Chainring, Triple Chainring - Shaft Diameter: 24mm - Shaft Length: 118mm - Crank Screw Specification: M18 - Pedal Thread Specification: M14 - Compatible: SHIMANO, SRAM, mensah, LTWOO, microshift - Bottom Bracket Type: BB91 M68-73 (standard configuration) - Compatible with: BB92, Frame inner diameter 24mm(for 24mm-24mm, 22mm(with adapter)-24mm) - Bottom Bracket specifications: Applicable Frame Bottom Bracket Width 68mm-73mm - Thread Specification: BC1.37*24T, Thread outer diameter 34mm, suitable for 24mm-24mm, 22MM (with adapter) -24MM Crank Shaft 🌟Chainring Description: - Teeth: 22T/32T/44T - Speed: 3x9 Speed - Material: Steel - BCD: 104mm(32/44T), 64mm(22T) 🌟Package contains: - 1pc * crank + 4pc * 6.5 screw - Or 1pc * crank + 3pcs * chainring + 4pc*6.5mm + 4pc*8.5mm screw screw 🌟About shipped: Our products are available in stock, usually shipped within 24 hours, about 5-12 days receiving the package (may be a little slower than 1-2 days on holidays) 🌟About Service: Please do not give us a bad review! If you have any problems with the product you received, please feel free to contact us to solve it, and we will give you the best solution #mountain bike crank #mountain bicycle chainring #104BCD chainring #BCD104 crank #bike chainring #bicycle crank #Narrow Wide crank #Aluminum Alloy crank chainring #fit 7/8/9/10/11/12speed #bicycle parts #9 speed crankset #crank 9speed #Triple chainring crankset #64bcd chainring