Description

Navihood B2 Expression Radar Laser Taillight

Rear-view radar. Custom LED display. Laser safety line.
The Navihood B2 combines intelligent radar detection, a high-visibility taillight, and a rear safety laser into one sleek, lightweight unit. Designed for riders who want advanced situational awareness without adding bulk to their bike.

Rear Radar Awareness

The integrated millimeter-wave radar detects vehicles approaching from behind up to 150 meters away, with a 45° horizontal detection angle. It can track up to eight vehicles simultaneously, automatically assessing threat levels and triggering visual alerts.

• Real-time vehicle detection
• Color-coded risk indication
• Brake alert when sudden deceleration is detected

Compatible with Navihood bike computers and most major GPS cycling computers via ANT+. Audio and visual alerts keep you informed without distraction.

High-Visibility Expression Display

A 234-dot dual-color LED matrix (red & yellow) allows you to display custom animations, symbols, or scrolling messages. Personalize your ride through the Navihood App and share designs with other users worldwide.

• Custom animated expressions
• Scrolling text for group ride communication
• Turn-by-turn synchronization with supported Navihood computers

Integrated Laser Safety Line

A rear-facing laser projects a visible boundary line behind your bike to increase rider presence on the road. When a vehicle approaches at a potentially unsafe distance, the laser flashes rapidly to increase visibility.

Long Battery Life

Powered by a 1500mAh battery and optimized low-consumption LED + radar system, the B2 delivers up to 17 hours of runtime with radar, laser, and expression display active.

• Up to 17 hours (Radar + Laser + Display active)
• USB-C charging
• Auto on/off

Durable & Weather-Ready

• IPX7 waterproof rating
• Operating temperature: -20°C to +60°C
• Break-resistant aluminum alloy mounting base

The rotary mounting system allows quick installation and removal. Securely attaches to O-shaped, D-shaped, and aero seatposts using the included mounting hardware and elastic rubber straps.

Connectivity

• Bluetooth 5.0 (custom protocol)
• ANT+ radar compatibility
• Navihood App integration
• Compatible with most major bike computers

Note: The B2 can connect to either the Navihood App or a cycling computer at one time.

Technical Specifications

In the Box

• Navihood B2 Radar Taillight
• Seatpost mount
• Saddle mount
• M4×12 screws
• USB-C charging cable
• Rubber rings
• Safety lanyard
• Quick start guide