55 Tooth Sprocket, Part #127-9

55 Tooth sprocket for some gas and electric scooters models using #25 chain. This sprocket can be used on the Razor E200 electric scooter with chain drive. This sprocket mounts to the rear wheel assembly and will provide more low-end power. Uses #25 (1/4 inch chain). 55 Teeth. Inner Diameter: 29mm (1.15 inches). Outer Diameter: 114mm (4.5 inches). Bolt Hole Spacing: 33mm.