KNOG Frog V3 Rear

KNOGSKU: 54-3570300213

Style: Love / 50LM


The popular light is back with the latest KNOG technology!

FROG," which once enjoyed great popularity, is back with the latest technology from KNOG.
COB LEDs are installed to achieve high brightness in an ultra-compact design.

With 9 different illumination modes, it performs well enough for everyday use in the city, such as commuting to work or school.
The LEDs are placed on a curved base, which enhances visibility from the sides, which is also unique to COB.

Slim and compact design weighing only 20g. It does not interfere with the appearancE
The large, easy-to-press single button is easy to operate even with gloves on.
The elastic strap allows for easy attachment to any location on the bicycle or to a helmet.

The first rechargeable FROG model.
Plug in the USB TypeC plug and charge in 3 hours.
Up to 50+ hours of use on a single chargE

Waterproof function that meets IP65 standards, so it is safe even in the rain or when washing the car.

Easy one-button operation

Turning FROG V3 on/off and switching between 9 light modes can be easily done with a single button on the top.


FROG V3 is IP65 waterproof, so there is no need to worry even if it gets wet in the rain.

Quick & Simple Installation

Installation of FROG V3 is quick and easy with a simple hook and loop method.

One Size Fits All

The silicone strap is highly elastic and fits wherever it is attached.


Maximum lumen: 20 lumens
Weight: 20g
Charging time: 3 hours
Maximum illumination time: 15 hours
9 light modes
IP65 waterproof
Chip-on-board (COB) LEDs
Maximum continuous flashing time: 60 hours
Charging port: Microp USB TypeC

  1. We ship within 1-2 business days after receiving your order (payment). (Basically, orders placed before 12:00 p.m. are shipped the same day.)
  2. Messenger delivery is available within Nagoya City only.
  3. We ship every day from Monday to Sunday, except on temporary holidays.
  4. Available delivery areas: All over Japan and the world.
  5. Please note that delivery may be delayed due to credit card processing status. If you would like to specify the delivery date and time, please fill in your request in the additional information in the shopping cart.
  6. The product will be shipped from Circles.
  7. Please contact the shipping company in case of damage or loss during shipping.

Regarding the delivery of complete bikes

  • Please note that a separate shipping fee of 9,900 yen (tax included) will be charged for shipping complete bikes. (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
  • After receiving your order, we will do a final check and ship complete bikes, but it may take 1-2 weeks. Please understand.
  • We will send the bike with some parts removed for packing. We strongly recommend that you have your bicycle assembled at your nearest bicycle store.
  • We will inform you of the delivery date and other details by e-mail.
  • We apologize for any sales discrepancies at the store.

Regarding the delivery of frame sets

  • Nationwide flat-rate shipping: 5,500 yen (tax included) (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
  • We will inform you of the delivery date and other details by e-mail.
  • We will provide the pre-treatment of facing and tapping for the frame sets purchased at our store as a service. We will inform you separately after purchase.
  • We can also install a headset and BB for a fee, so please feel free to contact us.

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