Cateye Rapid X3 rear light review

The Cateye Rapid X3 puts out up to 150 lumens from two independently controlled LED arrays

Cycling Weekly Verdict

The Cateye Rapid X3 is a competent unit with plenty of lighting modes. The ability to operate each of the two arrays of COB LEDs independently makes for lots of lighting options that should ensure that you are seen whatever the conditions.

Reasons to buy
  • +

    COB tech leads to large lighted area

  • +

    Independent switches for each array make for lots of lighting options

  • +

    Option to have a constant and a flashing array at the same time

  • +

    Step down to flashing output leads to long run time

  • +

Reasons to avoid
  • -

    Limited battery life in highest output constant mode

You can trust Cycling Weekly. Our team of experts put in hard miles testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

The Cateye Rapid X3 is Cateye’s top-of-the-range rear light, pushing out 150 lumens on its top power setting. It achieves this using twin arrays of chip on board (COB) LEDs.

COB is the latest LED tech, where the light-emitting LEDs form part of the chip rather than being separate components soldered into the circuit. Although the power of each LED is less, COB can achieve much higher LED densities resulting in a larger array for a given output.

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Paul Norman

Paul started writing for Cycling Weekly in 2015, covering cycling tech, new bikes and product testing. Since then, he’s reviewed hundreds of bikes and thousands of other pieces of cycling equipment for the magazine and the Cycling Weekly website.

He’s been cycling for a lot longer than that though and his travels by bike have taken him all around Europe and to California. He’s been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs.