11 tooth #25 chain sprocket. 24 volt 350 watt motor. 2750 RPM. Compatible with the Razor iMod Scooter and the MX350 Dirt Rocket (versions 1-8 only). You can switch the rotation in either the clockwise or counterclockwise direction by reversing the motor’s wires. Product Description 24 volt 350 watt MY1016 electric motor for the Razor iMod Scooter and the MX350 Dirt Rocket (versions 1-8). This motor can be used as a direct replacement for your existing Razor motor. It is capable of rotation in either the clockwise or counterclockwise direction by reversing the motor’s power wires. Please note that this motor is compatible with versions 1-8 ONLY of the MX350 Dirt Rocket. Note: Model versions can be determined based on the product ID code on your Razor product. The product ID code can be found on the battery cover and/or on the bottom of the frame. The 7th and 8th numbers in your product ID code are the version number of your Razor product (e.g. “01” = Version 1, “02” = Version 2, etc.). Model: MY1016 Type: Brush Voltage: 24 volt DC Sprocket: 11 tooth #25 Chain Rated Speed: 2750 RPM Output: 350 watts