🛑 Waterproof Brake Sensor Kit with 1T5 Data Cable – Juliet Connectors & 9-Pin Controller Plug

Brake Cut-Off Upgrade • Plug & Play • Waterproof Connections

Add brake cut-off functionality to your e-bike with the MCR Electric Waterproof Brake Sensor Kit, complete with a 1T5 waterproof data cable and 9-pin controller harness. Designed for a clean, plug-and-play installation, this kit allows your controller to automatically cut motor power when the brakes are applied, providing improved safety and smoother braking.

Ideal for riders using our 250W conversion kits, where brake sensors are not supplied as standard, this kit is suitable for both hydraulic and mechanical brake systems.

✅ What This Kit Does

The magnetic brake sensors detect when your brake lever is pulled and instantly signal the controller to cut motor power.

This provides:

• ✔️ Improved rider safety
• ✔️ Smoother braking
• ✔️ Reduced drivetrain wear
• ✔️ Better control in all riding conditions

✅ Why Choose This Kit?

Our 250W conversion kits do not include brake sensors as standard.

This optional upgrade is perfect for riders who want to add brake cut-off functionality using a simple plug-and-play wiring solution.

🔌 Features

• ✔️ Waterproof magnetic brake sensor kit
• ✔️ Suitable for hydraulic and mechanical brake levers
• ✔️ Includes waterproof 1T5 data cable
• ✔️ 9-pin waterproof controller connection
• ✔️ Waterproof Juliet connectors throughout
• ✔️ Neat, reliable plug-and-play installation
• ✔️ Helps cut motor power when braking
• ✔️ Ideal upgrade for 250W conversion kits
• ✔️ Durable construction for all-weather riding

🔌 1T5 Data Cable Functions

Depending on your controller and display, the 1T5 harness can provide connections for:

• ✔️ Display
• ✔️ Throttle
• ✔️ Brake Sensor(s)
• ✔️ Front Light / Headlight
• ✔️ Left & Right Control Switches (where applicable)

Port functions may vary slightly depending on controller and display configuration.

🚲 Compatibility

Compatible with many e-bike systems using:

• ✔️ Waterproof Juliet connectors
• ✔️ 9-pin controller harness
• ✔️ Hydraulic brake systems
• ✔️ Mechanical (cable) brake systems

Ideal as an optional upgrade for MCR Electric 250W Conversion Kits.

If you're unsure whether this kit is compatible with your bike, simply send us a clear photo of your controller and display connectors, and we'll be happy to confirm compatibility.

🛠️ Installation Tips

• Clean the brake lever thoroughly before fitting the sensor and magnet.
• Position the magnet so it sits close to the sensor when the brake is released and moves away when braking.
• Carefully align the arrows on all waterproof connectors before connecting.
• Never force waterproof connectors together.

Professional installation is recommended if you're unfamiliar with e-bike wiring.

📦 Package Includes

• ✔️ 1 × Waterproof Brake Sensor Cable (Juliet Connector)
• ✔️ Magnet Set & Mounting Accessories
• ✔️ 1 × Waterproof 1T5 Data Cable / Wiring Harness
• ✔️ 1 × 9-Pin Waterproof Controller Connector

⚠️ Important Information

Brake sensors provide an additional safety feature but do not replace properly adjusted and maintained brakes.

Always inspect your braking system regularly and ensure all components are securely installed before riding.

🤝 Why Choose MCR Electric?

• 🇬🇧 UK-based expert support
• 🚚 Fast UK dispatch
• 🔧 Technical advice before and after purchase
• ⚡ Quality components tested on our own builds
• 🛒 Wide range of e-bike motors, controllers, displays and accessories available