25H Chain Set FourHole Crankset Gearless Flywheel 146Link Chain for Electric Scooters

Feature: 1. High quality and superior metal material, rugged and durable for long service life. 2. Easy and convenient to use, with stable performance and simple operation. 3. Suitable for leisure folding electric scooters and scooters fit for Small Dolphin. 4. Applicable to 78mm 3.1in outer Diameter four?hole gearless flywheel and 25H chain. 5. Professionally manufactured, high accuracy, stable performance and durable for using. Specification: Condition: 100percent brand new Item Type: 25H Chain Set Material: Metal Color: As pictures shown Number of Holes: 4 holes Number of Teeth: 80 Aperture: Approx.5mm 0.2in Hole Distance: Approx.46mm 1.8in (center distance between two adjacent holes) Diagonal: Approx.65mm 2.6in (center distance between two diagonal holes) Inner Diameter: Approx.54mm 2.1in Outer Diameter: Approx.163mm 6.4in Thickness: Approx.2.3mm 0.1in Adaptation Chain: 25H chain Adapted Flywheel: 78mm 3.1in Outer Diameter FourHole Gearless Flywheel. Package List: 1 x Crankset1 x Flywheel1 x Chain Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.High quality and superior metal material, rugged and durable for long service life. Easy and convenient to use, with stable performance and simple operation. Suitable for leisure folding electric scooters and scooters fit for Small Dolphin. Applicable to 78mm 3.1in outer Diameter four?hole gearless flywheel and 25H chain. Professionally manufactured, high accuracy, stable performance and durable for using.