Bike lights / J-MEX / Universal Fit Motion Sensing Taillight
J-MEX · 8.9

Universal Fit Motion Sensing Taillight

$29.99
Last refresh 2026-11-02

This versatile rear light is designed with a universal mounting system that fits a wide variety of seat posts and frame geometries. The G2 model incorporates advanced motion-sensing technology that manages the power state automatically, ensuring the light is only active when the bike is in motion to maximize the efficiency of the rechargeable battery.

The deceleration flash provides a critical warning to those behind you, brightening significantly whenever the bike slows down. This intuitive response mimics automotive brake lights, providing a clear signal that improves safety in traffic. The compact and lightweight design ensures it doesn't add unnecessary bulk to your cycling setup.

With an IPX5 water resistance rating, this light is prepared for all-weather performance. The USB charging port is well-protected, and the LED array is optimized for a wide viewing angle. This model is an excellent entry point for riders seeking automated safety features and reliable visibility in a convenient, easy-to-install package.

Universal Fit Motion Sensing Taillight
Quick take

What stands out

From reading 8 reviews

Often liked

  • Brake light response 4
  • Motion auto on/off 4
  • Battery life 3
  • Brightness 3
  • Light modes variety 3
  • Build quality 2
  • Easy installation 2
  • USB rechargeable 2
  • Secure mounting 1

Minus side

  • Missing instructions 3
  • Secure mounting 2
  • Brightness 1
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J-MEX
Facts
Bicycle taillights USB rechargeable Universal Brake sensing Smart sensor IPX5 water resistant
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