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USB

1

2

Removing

Mounting

USB

USB

3

4

USB

USB

OK

NO!

USB

3

HOW TO MOUNT TO A BICYCLE

Cartridge battery

2-8-25, Kuwazu, Higashi Sumiyoshi-ku, Osaka 546-0041 Japan

Attn: CATEYE Customer Service Section
Phone  : (06)6719-6863 

 Fax  : (06)6719-6033

E-mail  : [email protected] 

URL : https://www.cateye.com

CO.,LTD.

Mounted below

Mounted above

1. Mounting the bracket

2. Mounting above or below the handlebar

3. Attaching/removing the light 

Wrap the strap around 

the handlebar.

Attach the dial.

Securely tighten the dial.

Cut

2

3

1

*3

Click

Turn the cartridge battery counterclock-

wise to remove it from the headlight.

Align the grooves and turn clockwise until the cartridge battery stops.

1

2

4

3

Mounting height : 400 – 1200 mm

* This section explains how to mount the light unit 

below the handlebar.

Rubber pad

Bracket

Strap

Strap

Dial

Screw

CAUTION!:

• Be sure to tighten the dial by hand. 

When you tighten it too hard with a 

tool, the screw thread may be 

stripped.

• Check the dial and screw (*3) on 

the bracket periodically, and use 

them without any loosening.

• Round off the cut edge of the 

bracket strap to prevent injury.

The head unit can be mounted on either above or below the 

handle by positioning the visor of the head unit to the top.

Removing

Headlight

Cartridge battery

Mounted below

Mounted above

Visor

Mounting

Removing

Mounting

CAUTION!:

• When attaching or removing the 

cartridge battery, be sure to hold 

the headlight to prevent it from 

dropping and becoming damaged.

• Do not attach the cartridge battery 

if water droplets, dust, or other 

foreign matter is attached to the 

unit, and do not touch the 

terminals.

• Never position the visor to the 

bottom of the headlight. Doing so 

will dazzle oncoming traffic.

Release button

Slide

Press and hold

When mounting the light unit, 

ensure that the light will not 

dazzle other road users. To adjust 

the angle, loosen the dial or the 

screw (*3) to the point that the 

bracket moves slightly, make the 

adjustment, and then tighten the 

screw to fix the light unit in place.

HOW TO REPLACE THE CARTRIDGE BATTERY

SPARE/OPTIONAL PARTS

LIMITED WARRANTY

USING THE E-BIKE ADAPTER

 (OPTIONAL)

You can use this light with your E-Bike by combining the light module with the 

optional E-Bike adaptor (sold separately).

2-year Warranty: Light unit only 

(excludes battery deterioration)

CatEye products are warranted to be free of defects from materials and workman-

ship for a period of 2 years from original purchase. If the product fails to work 

during normal use, CatEye will repair or replace the defect at no charge. Service 

must be performed by CatEye or an authorized retailer. To return the product, pack 

it carefully and enclose the warranty certificate (proof of purchase) with instruction 

for repair. Please write or type your name and address clearly on the warranty 

certificate. Insurance, handling and transportation charges to CatEye shall be borne 

by person desiring service.

Follow the procedure below to attach or remove the cartridge battery.

CAUTION!:

Be sure to hold the headlight to make sure the cartridge battery is 

securely attached or removed.

Drive unit

Light unit

E-Bike adapter

Bracket holder

To drive unit

5342730

USB cable

(MICRO USB)

5336840

Cartridge 

battery

(BA-3.4DS)

5338827N

FlexTight™ 

bracket

(H-34N)

5342440

Center fork 

bracket

(CFB-100)

5445340

GP bracket

5336920

E-Bike adapter

(Min 5.5V-Max 14.5V)

1604110

Out-front bracket 2

(OF-200)

5336860

Protective 

cover

Horizontal

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