SKU: #5447110


Introducing the CatEye Rapid X2 Kinetic, a movement-sensitive accelerometer brake light* for day and nighttime safety for your ride. Safety you'll never notice, but those around you will.


  • COB LED (50 Lumens)
  • Built-in acceleration sensor for Kinetic mode (Automatically turns on High mode when deceleration is detected.)
  • Mounts securely to the seat post with the rubber band (Ø12-32 mm)
  • Lithium-ion polymer rechargeable battery
  • USB rechargeable (Micro USB cable included)
  • Low battery indicator
  • 3 modes * Charging time: 2h
  • Mode memory function
  • Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.)


It’s time for road safety to run ‘round the clock.

The CatEye Rapid X2 Kinetic is a 50-lumen, USB rechargeable bicycle safety light that mounts easily on your seatpost. A built-in accelerometer automatically switches into a constant burst mode when it senses a sudden change in speed. Similar to daytime running lights on an automobile, the Rapid X2 Kinetic helps make your presence known as a cyclist. 180 degrees of visibility allows you to be seen from varied perspectives.

A Battery Auto-Save feature makes sure you’re covered the entire ride by automatically switching to a flashing mode should the battery run low.With up to 30 hours of runtime, the Rapid X2 Kinetic ensures you’ll be drained from your ride long before your light is.

Built-In Acceleration Sensor for Kinetic function

*Automatically turns on High for 2.5 sec when bike deceleration is detected.

*This light does not completely work with braking. The motion sensor may not respond in some circumstances depending on the light installation location, cycling speed or weather condition. We recommend that you keep a safe distance between vehicles when cycling.

What's Included

Includes Rapid X2 attachment base, one large and one small attachment band, and a micro USB charging cable.

Dimension:74.4 x 30.5 x 32.9mm
Weight:32g (with batteries)
Light source:COB LED
Battery:Lithium Polymer rechargeable battery
Low mode: 5 hrs
Flashing mode:30 hrs
Rapid mode:16 hrs
Recharge time: 2 hrs (USB2.0)
Mount size:Rubber band mount (fits φ 12.0-32.0mm)
Other : Kinetic mode, Battery auto save, Low battery indicator, Light mode memory

This light does not work completely with braking.
The stated runtime of each mode excludes the Kinetic function, and actual runtime may vary when the Kinetic function is enabled.
The factory-loaded battery life might be shorter than the specification above.
Design and specifications are subject to change without notice.

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Most Helpful Reviews :


Love this light!

by - verified purchaser
The Rapid X2 is very easy to place and use on my bike. I often ride in town, and the light output is really bright, making me feel a lot safer when the roads are busy. I haven't used it for long enough to realistically assess the battery life, but from the stats, it appears that the battery life is pretty long. I like that it has a USB recharger.

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