Simple and complex

I’m a keen cyclist and I love faraway areas with beautiful, untouched nature. But there I realized that I need “something” that would call a help in case of emergency. Furthermore I’m the father of the family. That’s why we started to develop the REXbike.

Petr Dudacek, CEO

REXbike features


Equip your bike with the latest technology. Company REX brings you complex system for cyclists, which includes 3 key features:

REXbike is designed to be inconspicuous, light, and easy to operate. REXbike features a motion sensor and GPS tracking technology, which allows you to see movement of your bike on map.

What's new in the second generation?
Longer battery life, USB-C connector, 4G/LTE support, new modes, coverage in all developed countries of the world

It’s simple.

  1. Mount – It's a piece of cake, just two security screws, and of course, we have video tutorial.
  2. Download app – Like you do every day. Available for both iPhone and Android.
  3. Done – With the push of one button, you secure your bike against theft.

All world covered

REXbike security and safety service is available in whole world for single monthly fee. So it doesn’t depend which country you are from or where do you plan to go on holidays. All world is covered.

Technical details

  • 147x38x16 mm, 99 g
  • u-blox GPS chipset
  • USB C port (for charging)
  • Battery: Li-Pol 2600 mAh, 5V
  • Battery life:
    • up to 18 days (in security mode - standby)
    • up to 11 days (ride and security mode)
  • Accelerometer
  • Operating temperature: -20°C ~ +55°C
  • Cold/warm/hot start: 30s/<30s/<1s

As seen on