XIKOBY 24V MX350 Controller Kit for Razor E200/E300 & MX350/MX400 — Replacement Control Module with E300 Twist-Grip Throttle, 4-Pi

The XIKOBY 24V MX350 controller kit is a direct-replacement control module and twist-grip throttle designed to restore speed, torque control, and rider inputs on compatible Razor E200/E300 scooters and MX350/MX400 dirt rocket bikes.

If your Razor E200, E300, MX350 or MX400 is showing erratic throttle response, stalled acceleration, or no power at all, a faulty controller or throttle assembly is often the culprit. This kit includes a MX350 control module and an E300-style twist-grip throttle engineered to accept rider signals, convert them into motor output, and support mode switching and protective current limiting in special conditions.

Will this kit fit my Razor scooter or dirt bike?

Compatibility is critical—this 24V controller and throttle assembly is built for specific Razor versions. Confirm your scooter’s model and version before purchasing to ensure proper fit and connector matching.

• Compatible with Razor E300 Version 20+ and E200 Version 13–23
• Fits MX350 Versions 33–36 and MX400 Versions 33–36 dirt rocket bikes
• Controller model number listed as ZK2430-D-FS-ROHS for verification
• Throttle uses a 4-pin male connector—compare to your original plug

How does the controller manage speed and safety?

The MX350 control module reads inputs from the throttle and converts them into motor speed and torque outputs, allowing acceleration, deceleration, and braking control. It also supports different performance modes and includes protections to limit current and reduce risk of component damage under abnormal conditions.

• Converts rider input into precise motor power adjustments
• Supports multi-mode operation for varying terrain demands
• Automatic power-off protection limits current when needed
• Designed for 24V electric scooter and dirt bike systems

What does the twist-grip throttle do and how precise is it?

The included MX350 twist-grip throttle senses rotational movement and outputs a voltage signal proportional to that rotation, allowing the controller to adjust motor power smoothly. It’s the primary interface for the rider to control vehicle speed and is designed for responsive feedback when installed correctly.

• Twist-grip mechanism for ergonomic speed control
• Internal magnetic sensing for reliable signal output
• 4-pin male connector matches listed controller models
• Replaces worn or unresponsive throttles for improved control

What’s included and what should I check before installation?

The kit ships with the MX350 control module and an E300-style twist-grip throttle—enough to replace both the controller and rider interface. Before installation, verify connector types, controller part number, and that your vehicle runs on a 24V electrical system.

• Package contents: 1 x MX350 control module, 1 x E300 twist-grip throttle
• Verify controller part number: ZK2430-D-FS-ROHS
• Confirm throttle connector: 4-pin male plug compatibility
• Recommended: compare wiring and mounting points to originals

Who is this for: This XIKOBY 24V MX350 controller and throttle kit is intended for owners and techs repairing Razor E200/E300 scooters or MX350/MX400 dirt rocket bikes who need a functional replacement controller and twist-grip throttle. It’s best suited for those comfortable verifying model versions, comparing part numbers and connectors, and performing basic component swaps or using a technician for installation. It restores control functions—acceleration, deceleration and adaptive torque behavior—without altering original vehicle specifications.