1. Material: aluminum alloy 2. Scope of application: road bicycles, folding bicycles 3. Number of teeth: 34-50T/53-39T 4.BCD: 110MM 5. Compatibility: 2 x 10/11 speed 6. The overall use of aluminum alloy material, durable 7. Shaft diameter: 24mm 8. Crank length: 170mm 9. Weight of crankset: about 736 grams (excluding the central axle)