#25 chain rear drive chain sprocket commonly used on gas and electric scooters and pocket bikes. This scooter sprocket has 55 teeth and 3 mounting holes set on a 33.5 mm mounting bolt hole circle. The center hole has a 29 mm diameter.

It is noteworthy that this sprocket may also be used on Razor's chain-driven E200 electric scooter versions 36+.

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