Amazon.com: Razor MX400 Dirt Rocket Kids Ride On 24V Electric Toy Motocross Motorcycle Dirt Bike, Speeds up to 14 MPH, Green : Toys & Games
OWNER'S MANUAL
Variable Speed Throttle and Controller Kit with Top Speed Adjustable Limiter for Razor E200/E200S/E225 Version 13+, E300/E300S/E325 Version 11 and 13+, MX350 and MX400 Version 33-36, Pocket Mod Scooter V45+, PR200 Pocket