Replacement Hydraulic Brake Sensor for RoadRunner D4+ 4.0 Electric Scooter
Restore safe and responsive braking control with this OEM‑spec hydraulic brake sensor for the RoadRunner D4+ 4.0. This sensor detects when the brake lever is engaged and communicates with the scooter's controller to safely cut motor power. Essential for maintaining smooth braking and rider safety, especially on high-performance models like the D4+ 4.0.

Features:

• Designed for the RoadRunner D4+ 4.0 Electric Scooter

• Detects brake lever engagement to signal the motor controller

• Improves braking safety and power cutoff response

• OEM‑spec sensor ensures perfect compatibility and fit

• Easy to install for fast, hassle-free maintenance